added Revit 2022 SDK minus except *rvt and *rfa

SDK/Samples/ImportExport/CS/Export/ExportBaseOptionsData.cs

@@ -0,0 +1,480 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores lower priority information for exporting dwg or dxf format
+    /// </summary>
+    public class ExportBaseOptionsData
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// String list of Layers and properties used in UI
+        /// </summary>
+        List<String> m_layersAndProperties;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.PropOverrideMode
+        /// </summary>
+        List<Autodesk.Revit.DB.PropOverrideMode> m_enumLayersAndProperties;
+
+        /// <summary>
+        /// String list of Layer Settings used in UI
+        /// </summary>
+        List<String> m_layerMapping;
+
+        /// <summary>
+        /// String list of layer settings values defined in Revit 
+        /// </summary>
+        List<String> m_enumLayerMapping;
+
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        String m_exportLayerMapping;
+
+        /// <summary>
+        /// String list of Linetype scaling used in UI
+        /// </summary>
+        List<String> m_lineScaling;
+
+        /// <summary>
+        /// PropOverrideMode Option to export
+        /// </summary>
+        Autodesk.Revit.DB.PropOverrideMode m_exportLayersAndProperties;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.LineScaling defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.LineScaling> m_enumLineScaling;
+
+        /// <summary>
+        /// Line scaling option to export
+        /// </summary>
+        Autodesk.Revit.DB.LineScaling m_exportLineScaling;
+
+        /// <summary>
+        /// String list of Coordinate system basis
+        /// </summary>
+        List<String> m_coorSystem;
+
+        /// <summary>
+        /// List of values whether to use shared coordinate system
+        /// </summary>
+        List<bool> m_enumCoorSystem;
+
+        /// <summary>
+        /// Coordinate system basis option to export
+        /// </summary>
+        bool m_exportCoorSystem;
+
+        /// <summary>
+        /// String list of DWG or DXF unit
+        /// </summary>
+        List<String> m_units;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.ExportUnit values defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.ExportUnit> m_enumUnits;
+
+        /// <summary>
+        /// Export unit option to export
+        /// </summary>
+        Autodesk.Revit.DB.ExportUnit m_exportUnit;
+
+        /// <summary>
+        /// String list of solid used in UI
+        /// </summary>
+        List<String> m_solids;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.SolidGeometry defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.SolidGeometry> m_enumSolids;
+
+        /// <summary>
+        /// Solid geometry option to export
+        /// </summary>
+        Autodesk.Revit.DB.SolidGeometry m_exportSolid;
+
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        bool m_exportMergeFiles;
+
+        //Export rooms and areas as polylines
+        bool m_exportAreas;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// String collection of Layers and properties used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LayersAndProperties
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<String>(m_layersAndProperties); 
+            }
+        }        
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.PropOverrideMode
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.PropOverrideMode> EnumLayersAndProperties
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.PropOverrideMode>(m_enumLayersAndProperties); 
+            }
+        } 
+
+        /// <summary>
+        /// PropOverrideMode Option to export
+        /// </summary>
+        public Autodesk.Revit.DB.PropOverrideMode ExportLayersAndProperties
+        {
+            get 
+            { 
+                return m_exportLayersAndProperties; 
+            }
+            set 
+            { 
+                m_exportLayersAndProperties = value; 
+            }
+        }
+
+        /// <summary>
+        /// String collection of Layer Settings used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LayerMapping
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_layerMapping); 
+            }
+        }  
+
+        /// <summary>
+        /// String collection of layer settings values defined in Revit  
+        /// </summary>
+        public ReadOnlyCollection<String> EnumLayerMapping
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_enumLayerMapping); 
+            }
+        }
+
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        public String ExportLayerMapping
+        {
+            get 
+            { 
+                return m_exportLayerMapping; 
+            }
+            set 
+            { 
+                m_exportLayerMapping = value;
+            }
+        }
+
+        /// <summary>
+        /// String collection of Linetype scaling used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LineScaling
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_lineScaling); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.LineScaling defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.LineScaling> EnumLineScaling
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.LineScaling>(m_enumLineScaling); 
+            }
+        }      
+
+        /// <summary>
+        /// Line scaling option to export
+        /// </summary>
+        public Autodesk.Revit.DB.LineScaling ExportLineScaling
+        {
+            get 
+            { 
+                return m_exportLineScaling; 
+            }
+            set 
+            { 
+                m_exportLineScaling = value;
+            }
+        }
+
+        /// <summary>
+        /// String collection of Coordinate system basis
+        /// </summary>
+        public ReadOnlyCollection<String> CoorSystem
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_coorSystem); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of values whether to use shared coordinate system
+        /// </summary>
+        public ReadOnlyCollection<bool> EnumCoorSystem
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<bool>(m_enumCoorSystem); 
+            }
+        }   
+
+        /// <summary>
+        /// Coordinate system basis option to export
+        /// </summary>
+        public bool ExportCoorSystem
+        {
+            get 
+            { 
+                return m_exportCoorSystem; 
+            }
+            set 
+            { 
+                m_exportCoorSystem = value;
+            }
+        } 
+
+        /// <summary>
+        /// String collection of DWG unit
+        /// </summary>
+        public ReadOnlyCollection<String> Units
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_units); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.ExportUnit values defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.ExportUnit> EnumUnits
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.ExportUnit>(m_enumUnits); 
+            }
+        }  
+
+        /// <summary>
+        /// Export unit option to export
+        /// </summary>
+        public Autodesk.Revit.DB.ExportUnit ExportUnit
+        {
+            get 
+            { 
+                return m_exportUnit; 
+            }
+            set 
+            { 
+                m_exportUnit = value; 
+            }
+        }    
+
+        /// <summary>
+        /// String collection of solid used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> Solids
+        {
+            get
+            {
+                return new ReadOnlyCollection<String>(m_solids);
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.SolidGeometry defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.SolidGeometry> EnumSolids
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.SolidGeometry>(m_enumSolids);
+            }
+        }
+
+        /// <summary>
+        /// Property of solid geometry option to export
+        /// </summary>
+        public Autodesk.Revit.DB.SolidGeometry ExportSolid
+        {
+            get 
+            {
+                return m_exportSolid; 
+            }
+            set 
+            { 
+                m_exportSolid = value;
+            }
+        }
+
+        /// <summary>
+        /// Export rooms and areas as polylines
+        /// </summary>
+        public bool ExportAreas
+        {
+            get 
+            { 
+                return m_exportAreas;
+            }
+            set 
+            {
+                m_exportAreas = value; 
+            }
+        }
+
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        public bool ExportMergeFiles
+        {
+            get
+            {
+                return m_exportMergeFiles;
+            }
+            set
+            {
+                m_exportMergeFiles = value;
+            }
+        } 
+        #endregion
+
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        public ExportBaseOptionsData()
+        {
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize values
+        /// </summary>
+        void Initialize()
+        {
+            //Layers and properties:
+            m_layersAndProperties = new List<String>();
+            m_enumLayersAndProperties = new List<Autodesk.Revit.DB.PropOverrideMode>();
+            m_layersAndProperties.Add("Category properties BYLAYER, overrides BYENTITY");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.ByEntity);
+            m_layersAndProperties.Add("All properties BYLAYER, no overrides");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.ByLayer);
+            m_layersAndProperties.Add("All properties BYLAYER, new Layers for overrides");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.NewLayer);
+            
+
+            //Layer Settings:
+            m_layerMapping = new List<String>();
+            m_enumLayerMapping = new List<String>();
+            m_layerMapping.Add("AIA - American Institute of Architects standard");
+            m_enumLayerMapping.Add("AIA");
+            m_layerMapping.Add("ISO13567 - ISO standard 13567");
+            m_enumLayerMapping.Add("ISO13567");
+            m_layerMapping.Add("CP83 - Singapore standard 83");
+            m_enumLayerMapping.Add("CP83");
+            m_layerMapping.Add("BS1192 - British standard 1192");
+            m_enumLayerMapping.Add("BS1192");
+
+            //Linetype scaling:
+            m_lineScaling = new List<String>();
+            m_enumLineScaling = new List<Autodesk.Revit.DB.LineScaling>();
+            m_lineScaling.Add("Scaled Linetype definitions");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.ViewScale);
+            m_lineScaling.Add("ModelSpace (PSLTSCALE = 0)");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.ModelSpace);
+            m_lineScaling.Add("Paperspace (PSLTSCALE = 1)");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.PaperSpace);
+
+            //Coordinate system basis
+            m_coorSystem = new List<String>();
+            m_enumCoorSystem = new List<bool>();
+            m_coorSystem.Add("Project Internal");
+            m_enumCoorSystem.Add(false);
+            m_coorSystem.Add("Shared");
+            m_enumCoorSystem.Add(true);
+
+            //One DWG unit
+            m_units = new List<String>();
+            m_enumUnits = new List<Autodesk.Revit.DB.ExportUnit>();
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Foot.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Foot);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Inch.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Inch);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Meter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Meter);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Centimeter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Centimeter);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Millimeter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Millimeter);
+
+            m_solids = new List<String>();
+            m_enumSolids = new List<Autodesk.Revit.DB.SolidGeometry>();
+            m_solids.Add("Export as polymesh");
+            m_enumSolids.Add(Autodesk.Revit.DB.SolidGeometry.Polymesh);
+            m_solids.Add("Export as ACIS solids");
+            m_enumSolids.Add(Autodesk.Revit.DB.SolidGeometry.ACIS);
+
+            // Set default values
+            m_exportAreas = false;
+            m_exportSolid = Autodesk.Revit.DB.SolidGeometry.Polymesh;
+            m_exportLayerMapping = "AIA";
+            m_exportLayersAndProperties = Autodesk.Revit.DB.PropOverrideMode.ByEntity;
+            m_exportLineScaling = Autodesk.Revit.DB.LineScaling.PaperSpace;
+            m_exportMergeFiles = false;
+            m_exportCoorSystem = EnumCoorSystem[0];
+            m_exportUnit = Autodesk.Revit.DB.ExportUnit.Inch;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportBaseOptionsForm.Designer.cs

@@ -0,0 +1,276 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which provides the options of lower priority information for export
+    /// </summary>
+    partial class ExportBaseOptionsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.labelLayersAndProperties = new System.Windows.Forms.Label();
+            this.comboBoxLayersAndProperties = new System.Windows.Forms.ComboBox();
+            this.labelLinetypeScaling = new System.Windows.Forms.Label();
+            this.comboBoxLinetypeScaling = new System.Windows.Forms.ComboBox();
+            this.labelCoorSystem = new System.Windows.Forms.Label();
+            this.comboBoxCoorSystem = new System.Windows.Forms.ComboBox();
+            this.labelDWGUnit = new System.Windows.Forms.Label();
+            this.comboBoxDWGUnit = new System.Windows.Forms.ComboBox();
+            this.labelSolids = new System.Windows.Forms.Label();
+            this.comboBoxSolids = new System.Windows.Forms.ComboBox();
+            this.checkBoxExportingAreas = new System.Windows.Forms.CheckBox();
+            this.buttonOK = new System.Windows.Forms.Button();
+            this.labelLayerSettings = new System.Windows.Forms.Label();
+            this.comboBoxLayerSettings = new System.Windows.Forms.ComboBox();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.checkBoxMergeViews = new System.Windows.Forms.CheckBox();
+            this.SuspendLayout();
+            // 
+            // labelLayersAndProperties
+            // 
+            this.labelLayersAndProperties.AutoSize = true;
+            this.labelLayersAndProperties.Location = new System.Drawing.Point(13, 13);
+            this.labelLayersAndProperties.Name = "labelLayersAndProperties";
+            this.labelLayersAndProperties.Size = new System.Drawing.Size(111, 13);
+            this.labelLayersAndProperties.TabIndex = 0;
+            this.labelLayersAndProperties.Text = "Layers and properties:";
+            // 
+            // comboBoxLayersAndProperties
+            // 
+            this.comboBoxLayersAndProperties.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxLayersAndProperties.FormattingEnabled = true;
+            this.comboBoxLayersAndProperties.Location = new System.Drawing.Point(16, 30);
+            this.comboBoxLayersAndProperties.Name = "comboBoxLayersAndProperties";
+            this.comboBoxLayersAndProperties.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxLayersAndProperties.TabIndex = 1;
+            // 
+            // labelLinetypeScaling
+            // 
+            this.labelLinetypeScaling.AutoSize = true;
+            this.labelLinetypeScaling.Location = new System.Drawing.Point(13, 96);
+            this.labelLinetypeScaling.Name = "labelLinetypeScaling";
+            this.labelLinetypeScaling.Size = new System.Drawing.Size(86, 13);
+            this.labelLinetypeScaling.TabIndex = 0;
+            this.labelLinetypeScaling.Text = "Linetype scaling:";
+            // 
+            // comboBoxLinetypeScaling
+            // 
+            this.comboBoxLinetypeScaling.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxLinetypeScaling.FormattingEnabled = true;
+            this.comboBoxLinetypeScaling.Location = new System.Drawing.Point(16, 113);
+            this.comboBoxLinetypeScaling.Name = "comboBoxLinetypeScaling";
+            this.comboBoxLinetypeScaling.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxLinetypeScaling.TabIndex = 3;
+            // 
+            // labelCoorSystem
+            // 
+            this.labelCoorSystem.AutoSize = true;
+            this.labelCoorSystem.Location = new System.Drawing.Point(13, 142);
+            this.labelCoorSystem.Name = "labelCoorSystem";
+            this.labelCoorSystem.Size = new System.Drawing.Size(123, 13);
+            this.labelCoorSystem.TabIndex = 0;
+            this.labelCoorSystem.Text = "Coordinate system basis:";
+            // 
+            // comboBoxCoorSystem
+            // 
+            this.comboBoxCoorSystem.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxCoorSystem.FormattingEnabled = true;
+            this.comboBoxCoorSystem.Location = new System.Drawing.Point(16, 157);
+            this.comboBoxCoorSystem.Name = "comboBoxCoorSystem";
+            this.comboBoxCoorSystem.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxCoorSystem.TabIndex = 4;
+            // 
+            // labelDWGUnit
+            // 
+            this.labelDWGUnit.AutoSize = true;
+            this.labelDWGUnit.Location = new System.Drawing.Point(13, 184);
+            this.labelDWGUnit.Name = "labelDWGUnit";
+            this.labelDWGUnit.Size = new System.Drawing.Size(90, 13);
+            this.labelDWGUnit.TabIndex = 0;
+            this.labelDWGUnit.Text = "One DWG unit is:";
+            // 
+            // comboBoxDWGUnit
+            // 
+            this.comboBoxDWGUnit.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxDWGUnit.FormattingEnabled = true;
+            this.comboBoxDWGUnit.Location = new System.Drawing.Point(16, 198);
+            this.comboBoxDWGUnit.Name = "comboBoxDWGUnit";
+            this.comboBoxDWGUnit.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxDWGUnit.TabIndex = 5;
+            // 
+            // labelSolids
+            // 
+            this.labelSolids.AutoSize = true;
+            this.labelSolids.Location = new System.Drawing.Point(13, 224);
+            this.labelSolids.Name = "labelSolids";
+            this.labelSolids.Size = new System.Drawing.Size(113, 13);
+            this.labelSolids.TabIndex = 0;
+            this.labelSolids.Text = "Solids (3D views only):";
+            // 
+            // comboBoxSolids
+            // 
+            this.comboBoxSolids.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxSolids.FormattingEnabled = true;
+            this.comboBoxSolids.Location = new System.Drawing.Point(16, 241);
+            this.comboBoxSolids.Name = "comboBoxSolids";
+            this.comboBoxSolids.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxSolids.TabIndex = 6;
+            // 
+            // checkBoxExportingAreas
+            // 
+            this.checkBoxExportingAreas.AutoSize = true;
+            this.checkBoxExportingAreas.Location = new System.Drawing.Point(16, 271);
+            this.checkBoxExportingAreas.Name = "checkBoxExportingAreas";
+            this.checkBoxExportingAreas.Size = new System.Drawing.Size(194, 17);
+            this.checkBoxExportingAreas.TabIndex = 7;
+            this.checkBoxExportingAreas.Text = "Export rooms and areas as polylines";
+            this.checkBoxExportingAreas.UseVisualStyleBackColor = true;
+            // 
+            // buttonOK
+            // 
+            this.buttonOK.Location = new System.Drawing.Point(161, 335);
+            this.buttonOK.Name = "buttonOK";
+            this.buttonOK.Size = new System.Drawing.Size(75, 23);
+            this.buttonOK.TabIndex = 0;
+            this.buttonOK.Text = "&OK";
+            this.buttonOK.UseVisualStyleBackColor = true;
+            this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+            // 
+            // labelLayerSettings
+            // 
+            this.labelLayerSettings.AutoSize = true;
+            this.labelLayerSettings.Location = new System.Drawing.Point(13, 55);
+            this.labelLayerSettings.Name = "labelLayerSettings";
+            this.labelLayerSettings.Size = new System.Drawing.Size(75, 13);
+            this.labelLayerSettings.TabIndex = 0;
+            this.labelLayerSettings.Text = "Layer settings:";
+            // 
+            // comboBoxLayerSettings
+            // 
+            this.comboBoxLayerSettings.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxLayerSettings.FormattingEnabled = true;
+            this.comboBoxLayerSettings.Location = new System.Drawing.Point(16, 72);
+            this.comboBoxLayerSettings.Name = "comboBoxLayerSettings";
+            this.comboBoxLayerSettings.Size = new System.Drawing.Size(301, 21);
+            this.comboBoxLayerSettings.TabIndex = 2;
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.Location = new System.Drawing.Point(242, 335);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+            this.buttonCancel.TabIndex = 8;
+            this.buttonCancel.Text = "&Cancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxMergeViews
+            // 
+            this.checkBoxMergeViews.AutoSize = true;
+            this.checkBoxMergeViews.Location = new System.Drawing.Point(16, 294);
+            this.checkBoxMergeViews.Name = "checkBoxMergeViews";
+            this.checkBoxMergeViews.Size = new System.Drawing.Size(220, 17);
+            this.checkBoxMergeViews.TabIndex = 9;
+            this.checkBoxMergeViews.Text = "Create separate files for each view/sheet";
+            this.checkBoxMergeViews.UseVisualStyleBackColor = true;
+            // 
+            // ExportBaseOptionsForm
+            // 
+            this.AcceptButton = this.buttonOK;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.buttonCancel;
+            this.ClientSize = new System.Drawing.Size(336, 368);
+            this.Controls.Add(this.checkBoxMergeViews);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonOK);
+            this.Controls.Add(this.checkBoxExportingAreas);
+            this.Controls.Add(this.comboBoxSolids);
+            this.Controls.Add(this.labelSolids);
+            this.Controls.Add(this.comboBoxDWGUnit);
+            this.Controls.Add(this.labelDWGUnit);
+            this.Controls.Add(this.comboBoxCoorSystem);
+            this.Controls.Add(this.labelCoorSystem);
+            this.Controls.Add(this.comboBoxLinetypeScaling);
+            this.Controls.Add(this.labelLinetypeScaling);
+            this.Controls.Add(this.comboBoxLayerSettings);
+            this.Controls.Add(this.labelLayerSettings);
+            this.Controls.Add(this.comboBoxLayersAndProperties);
+            this.Controls.Add(this.labelLayersAndProperties);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "ExportBaseOptionsForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label labelLayersAndProperties;
+        private System.Windows.Forms.ComboBox comboBoxLayersAndProperties;
+        private System.Windows.Forms.Label labelLinetypeScaling;
+        private System.Windows.Forms.ComboBox comboBoxLinetypeScaling;
+        private System.Windows.Forms.Label labelCoorSystem;
+        private System.Windows.Forms.ComboBox comboBoxCoorSystem;
+        private System.Windows.Forms.Label labelDWGUnit;
+        private System.Windows.Forms.ComboBox comboBoxDWGUnit;
+        private System.Windows.Forms.Label labelSolids;
+        private System.Windows.Forms.ComboBox comboBoxSolids;
+        private System.Windows.Forms.CheckBox checkBoxExportingAreas;
+        private System.Windows.Forms.Button buttonOK;
+        private System.Windows.Forms.Label labelLayerSettings;
+        private System.Windows.Forms.ComboBox comboBoxLayerSettings;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.CheckBox checkBoxMergeViews;
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportBaseOptionsForm.cs

@@ -0,0 +1,116 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which provides the options of lower priority information for exporting dwg format
+    /// </summary>
+    public partial class ExportBaseOptionsForm : System.Windows.Forms.Form
+    {
+        /// <summary>
+        /// data class
+        /// </summary>
+        private ExportBaseOptionsData m_exportOptionsData;
+        
+
+        /// <summary>
+        /// Whether export the current view only
+        /// </summary>
+        private bool m_contain3DView;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="exportOptionsData">Data class object</param>
+        /// <param name="contain3DView">If views to export contain 3D views</param>
+        /// <param name="exportFormat">export format</param>
+        public ExportBaseOptionsForm(ExportBaseOptionsData exportOptionsData, bool contain3DView, String exportFormat)
+        {
+            InitializeComponent();
+            m_exportOptionsData = exportOptionsData;
+            m_contain3DView = contain3DView;
+            this.Text = "Export " + exportFormat + " Options";
+            InitializeControl();
+        }
+
+        /// <summary>
+        /// Initialize values and status of controls
+        /// </summary>
+        private void InitializeControl()
+        {
+            comboBoxLayersAndProperties.DataSource = m_exportOptionsData.LayersAndProperties;
+            comboBoxLayersAndProperties.SelectedIndex = 0;
+            comboBoxLayerSettings.DataSource = m_exportOptionsData.LayerMapping;
+            comboBoxLayerSettings.SelectedIndex = 0;
+            comboBoxLinetypeScaling.DataSource = m_exportOptionsData.LineScaling;
+            comboBoxLinetypeScaling.SelectedIndex = 2;
+            comboBoxCoorSystem.DataSource = m_exportOptionsData.CoorSystem;
+            comboBoxCoorSystem.SelectedIndex = 0;
+            comboBoxDWGUnit.DataSource = m_exportOptionsData.Units;
+            comboBoxDWGUnit.SelectedIndex = 1;
+            comboBoxSolids.DataSource = m_exportOptionsData.Solids;
+            comboBoxSolids.SelectedIndex = 0;
+            checkBoxMergeViews.Checked = m_exportOptionsData.ExportMergeFiles;
+            checkBoxMergeViews.Text = "Merge all views in one file (via XRefs).";
+            if (m_contain3DView)
+            {
+                comboBoxSolids.Enabled = true;
+            }
+            else
+            {
+                comboBoxSolids.Enabled = false;
+            }
+        }
+
+        /// <summary>
+        /// Transfer information back to ExportOptionData class
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonOK_Click(object sender, EventArgs e)
+        {
+            m_exportOptionsData.ExportLayersAndProperties = 
+                m_exportOptionsData.EnumLayersAndProperties[comboBoxLayersAndProperties.SelectedIndex];
+            m_exportOptionsData.ExportLayerMapping = 
+                m_exportOptionsData.EnumLayerMapping[comboBoxLayerSettings.SelectedIndex];
+            m_exportOptionsData.ExportLineScaling = 
+                m_exportOptionsData.EnumLineScaling[comboBoxLinetypeScaling.SelectedIndex];
+            m_exportOptionsData.ExportCoorSystem = 
+                m_exportOptionsData.EnumCoorSystem[comboBoxCoorSystem.SelectedIndex];
+            m_exportOptionsData.ExportUnit = m_exportOptionsData.EnumUnits[comboBoxDWGUnit.SelectedIndex];
+            m_exportOptionsData.ExportSolid = m_exportOptionsData.EnumSolids[comboBoxSolids.SelectedIndex];
+            m_exportOptionsData.ExportAreas = checkBoxExportingAreas.Checked;
+            m_exportOptionsData.ExportMergeFiles = checkBoxMergeViews.Checked;
+
+            this.Close();
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportBaseOptionsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/ExportDGNData.cs

@@ -0,0 +1,278 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using System.Diagnostics;
+using System.IO;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the main information for exporting dgn format
+    /// </summary>
+    public class ExportDGNData : ExportDataWithViews
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// String list of Layer Settings used in UI
+        /// </summary>
+        List<String> m_layerMapping;
+        /// <summary>
+        /// String list of layer settings values defined in Revit 
+        /// </summary>
+        List<String> m_enumLayerMapping;
+        /// <summary>
+        /// String list of exported format version defined in Revit 
+        /// </summary>
+        List<String> m_exportFileVersions;
+      
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        private String m_exportLayerMapping;
+        /// <summary>
+        /// Exported format version
+        /// </summary>
+        private String m_exportFileVersion;
+        /// <summary>
+        /// Whether to hide scope box
+        /// </summary>
+        private Boolean m_hideScopeBox;
+        /// <summary>
+        /// Whether to hide unreference view tags
+        /// </summary>
+        private Boolean m_hideUnreferenceViewTags;
+        /// <summary>
+        /// Whether to hide reference plane
+        /// </summary>
+        private Boolean m_hideReferencePlane;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        public String ExportLayerMapping
+        {
+            get
+            {
+                return m_exportLayerMapping;
+            }
+            set
+            {
+                m_exportLayerMapping = value;
+            }
+        }
+
+        /// <summary>
+        /// Whether to hide scope box
+        /// </summary>
+        public Boolean HideScopeBox
+        {
+            get 
+            { 
+                return m_hideScopeBox; 
+            }
+            set 
+            {
+                m_hideScopeBox = value; 
+            }
+        }
+
+        /// <summary>
+        /// Whether to hide unreference view tags
+        /// </summary>
+        public Boolean HideUnreferenceViewTags
+        {
+            get 
+            { 
+                return m_hideUnreferenceViewTags;
+            }
+            set 
+            { 
+                m_hideUnreferenceViewTags = value;
+            }
+        }
+
+        /// <summary>
+        /// Whether to hide reference plane
+        /// </summary>
+        public Boolean HideReferencePlane
+        {
+            get 
+            { 
+                return m_hideReferencePlane;
+            }
+            set 
+            { 
+                m_hideReferencePlane = value; 
+            }
+        }
+
+        /// <summary>
+        /// Exported format version
+        /// </summary>
+        public String ExportFileVersion
+        {
+            get 
+            { 
+                return m_exportFileVersion; 
+            }
+            set 
+            { 
+                m_exportFileVersion = value; 
+            }
+        }
+
+        /// <summary>
+        /// String collection of Layer Settings used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LayerMapping
+        {
+            get
+            {
+                return new ReadOnlyCollection<String>(m_layerMapping);
+            }
+        }
+
+        /// <summary>
+        /// String list of exported format version defined in Revit 
+        /// </summary>
+        public List<String> ExportFileVersions
+        {
+            get 
+            { 
+                return m_exportFileVersions; 
+            }
+        }
+
+        /// <summary>
+        /// String collection of layer settings values defined in Revit  
+        /// </summary>
+        public ReadOnlyCollection<String> EnumLayerMapping
+        {
+            get
+            {
+                return new ReadOnlyCollection<String>(m_enumLayerMapping);
+            }
+        }
+
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportDGNData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //Layer Settings:
+            m_layerMapping = new List<String>();
+            m_enumLayerMapping = new List<String>();
+            m_layerMapping.Add("AIA - American Institute of Architects standard");
+            m_enumLayerMapping.Add("AIA");
+            m_layerMapping.Add("ISO13567 - ISO standard 13567");
+            m_enumLayerMapping.Add("ISO13567");
+            m_layerMapping.Add("CP83 - Singapore standard 83");
+            m_enumLayerMapping.Add("CP83");
+            m_layerMapping.Add("BS1192 - British standard 1192");
+            m_enumLayerMapping.Add("BS1192");
+
+            //Export format:
+            m_exportFileVersions = new List<string>();
+            m_exportFileVersions.Add("MicroStation V8 Format");
+            m_exportFileVersions.Add("MicroStation V7 Format");
+
+            m_filter = "Microstation DGN Files |*.dgn";
+            m_title = "Export DGN";
+        }
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            base.Export();
+
+            bool exported = false;
+            ICollection<ElementId> views = new List<ElementId>();
+            if (m_currentViewOnly)
+            {
+                views.Add(m_activeDoc.ActiveView.Id);
+            }
+            else
+            {
+                foreach (View view in m_selectViewsData.SelectedViews)
+                {
+                   views.Add(view.Id);
+                }
+            }
+
+            //parameter : DWGExportOptions dwgExportOptions
+            DGNExportOptions dgnExportOptions = new DGNExportOptions();
+            // default values
+            dgnExportOptions.FileVersion = DGNFileFormat.DGNVersion8;
+            m_exportLayerMapping = m_enumLayerMapping[0];
+
+            // set values from selected options
+            dgnExportOptions.LayerMapping = m_exportLayerMapping;
+            if (m_exportFileVersion == "MicroStation V7 Format")
+            {
+                dgnExportOptions.FileVersion = DGNFileFormat.DGNVersion7;
+            }
+            else
+            {
+                dgnExportOptions.FileVersion = DGNFileFormat.DGNVersion8;
+            }
+            dgnExportOptions.HideScopeBox = m_hideScopeBox;
+            dgnExportOptions.HideUnreferenceViewTags = m_hideUnreferenceViewTags;
+            dgnExportOptions.HideReferencePlane = m_hideReferencePlane;
+            ProcessModule mainModule = Process.GetCurrentProcess().MainModule;
+            String RevitFolder = Path.GetDirectoryName( mainModule.FileName );
+            dgnExportOptions.SeedName = Path.Combine(RevitFolder, @"ACADInterop\V8-Imperial-Seed3D.dgn");
+            
+            //Export
+            exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, dgnExportOptions);
+            return exported;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDGNOptionsForm.Designer.cs

@@ -0,0 +1,276 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    partial class ExportDGNOptionsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.labelLayerMapping = new System.Windows.Forms.Label();
+            this.comboBoxLayerSettings = new System.Windows.Forms.ComboBox();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.buttonOK = new System.Windows.Forms.Button();
+            this.comboBoxExportFileFormat = new System.Windows.Forms.ComboBox();
+            this.labelExportFormat = new System.Windows.Forms.Label();
+            this.checkBoxHideScopeBoxes = new System.Windows.Forms.CheckBox();
+            this.checkBoxHideReferencePlanes = new System.Windows.Forms.CheckBox();
+            this.checkBoxHideUnrefereceViewTag = new System.Windows.Forms.CheckBox();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.textBox2DSeedFile = new System.Windows.Forms.TextBox();
+            this.button2DSeedFile = new System.Windows.Forms.Button();
+            this.label2 = new System.Windows.Forms.Label();
+            this.textBox3DSeedFile = new System.Windows.Forms.TextBox();
+            this.button3DSeedFile = new System.Windows.Forms.Button();
+            this.groupBox1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // labelLayerMapping
+            // 
+            this.labelLayerMapping.AutoSize = true;
+            this.labelLayerMapping.Location = new System.Drawing.Point(11, 15);
+            this.labelLayerMapping.Name = "labelLayerMapping";
+            this.labelLayerMapping.Size = new System.Drawing.Size(77, 13);
+            this.labelLayerMapping.TabIndex = 14;
+            this.labelLayerMapping.Text = "Layer Settings:";
+            // 
+            // comboBoxLayerSettings
+            // 
+            this.comboBoxLayerSettings.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxLayerSettings.FormattingEnabled = true;
+            this.comboBoxLayerSettings.Location = new System.Drawing.Point(14, 31);
+            this.comboBoxLayerSettings.Name = "comboBoxLayerSettings";
+            this.comboBoxLayerSettings.Size = new System.Drawing.Size(419, 21);
+            this.comboBoxLayerSettings.TabIndex = 15;
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.Location = new System.Drawing.Point(358, 332);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+            this.buttonCancel.TabIndex = 17;
+            this.buttonCancel.Text = "&Cancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // buttonOK
+            // 
+            this.buttonOK.Location = new System.Drawing.Point(275, 332);
+            this.buttonOK.Name = "buttonOK";
+            this.buttonOK.Size = new System.Drawing.Size(75, 23);
+            this.buttonOK.TabIndex = 16;
+            this.buttonOK.Text = "&OK";
+            this.buttonOK.UseVisualStyleBackColor = true;
+            this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+            // 
+            // comboBoxExportFileFormat
+            // 
+            this.comboBoxExportFileFormat.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxExportFileFormat.FormattingEnabled = true;
+            this.comboBoxExportFileFormat.Location = new System.Drawing.Point(17, 82);
+            this.comboBoxExportFileFormat.Name = "comboBoxExportFileFormat";
+            this.comboBoxExportFileFormat.Size = new System.Drawing.Size(416, 21);
+            this.comboBoxExportFileFormat.TabIndex = 18;
+            // 
+            // labelExportFormat
+            // 
+            this.labelExportFormat.AutoSize = true;
+            this.labelExportFormat.Location = new System.Drawing.Point(14, 64);
+            this.labelExportFormat.Name = "labelExportFormat";
+            this.labelExportFormat.Size = new System.Drawing.Size(100, 13);
+            this.labelExportFormat.TabIndex = 19;
+            this.labelExportFormat.Text = "Export to file format:";
+            // 
+            // checkBoxHideScopeBoxes
+            // 
+            this.checkBoxHideScopeBoxes.AutoSize = true;
+            this.checkBoxHideScopeBoxes.Location = new System.Drawing.Point(17, 244);
+            this.checkBoxHideScopeBoxes.Name = "checkBoxHideScopeBoxes";
+            this.checkBoxHideScopeBoxes.Size = new System.Drawing.Size(111, 17);
+            this.checkBoxHideScopeBoxes.TabIndex = 20;
+            this.checkBoxHideScopeBoxes.Text = "Hide scope boxes";
+            this.checkBoxHideScopeBoxes.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxHideReferencePlanes
+            // 
+            this.checkBoxHideReferencePlanes.AutoSize = true;
+            this.checkBoxHideReferencePlanes.Location = new System.Drawing.Point(17, 267);
+            this.checkBoxHideReferencePlanes.Name = "checkBoxHideReferencePlanes";
+            this.checkBoxHideReferencePlanes.Size = new System.Drawing.Size(130, 17);
+            this.checkBoxHideReferencePlanes.TabIndex = 20;
+            this.checkBoxHideReferencePlanes.Text = "Hide reference planes";
+            this.checkBoxHideReferencePlanes.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxHideUnrefereceViewTag
+            // 
+            this.checkBoxHideUnrefereceViewTag.AutoSize = true;
+            this.checkBoxHideUnrefereceViewTag.Location = new System.Drawing.Point(17, 290);
+            this.checkBoxHideUnrefereceViewTag.Name = "checkBoxHideUnrefereceViewTag";
+            this.checkBoxHideUnrefereceViewTag.Size = new System.Drawing.Size(162, 17);
+            this.checkBoxHideUnrefereceViewTag.TabIndex = 20;
+            this.checkBoxHideUnrefereceViewTag.Text = "Hide unreferenced view tags";
+            this.checkBoxHideUnrefereceViewTag.UseVisualStyleBackColor = true;
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.button3DSeedFile);
+            this.groupBox1.Controls.Add(this.button2DSeedFile);
+            this.groupBox1.Controls.Add(this.textBox3DSeedFile);
+            this.groupBox1.Controls.Add(this.label2);
+            this.groupBox1.Controls.Add(this.textBox2DSeedFile);
+            this.groupBox1.Controls.Add(this.label1);
+            this.groupBox1.Location = new System.Drawing.Point(14, 119);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(419, 116);
+            this.groupBox1.TabIndex = 21;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "Specify seed file for";
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(7, 20);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(54, 13);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "2D views:";
+            // 
+            // textBox2DSeedFile
+            // 
+            this.textBox2DSeedFile.Location = new System.Drawing.Point(10, 37);
+            this.textBox2DSeedFile.Name = "textBox2DSeedFile";
+            this.textBox2DSeedFile.Size = new System.Drawing.Size(371, 20);
+            this.textBox2DSeedFile.TabIndex = 1;
+            // 
+            // button2DSeedFile
+            // 
+            this.button2DSeedFile.Location = new System.Drawing.Point(387, 36);
+            this.button2DSeedFile.Name = "button2DSeedFile";
+            this.button2DSeedFile.Size = new System.Drawing.Size(26, 20);
+            this.button2DSeedFile.TabIndex = 2;
+            this.button2DSeedFile.Text = "...";
+            this.button2DSeedFile.UseVisualStyleBackColor = true;
+            this.button2DSeedFile.Click += new System.EventHandler(this.button2DSeedFile_Click);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(7, 67);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(54, 13);
+            this.label2.TabIndex = 0;
+            this.label2.Text = "3D views:";
+            // 
+            // textBox3DSeedFile
+            // 
+            this.textBox3DSeedFile.Location = new System.Drawing.Point(10, 84);
+            this.textBox3DSeedFile.Name = "textBox3DSeedFile";
+            this.textBox3DSeedFile.Size = new System.Drawing.Size(371, 20);
+            this.textBox3DSeedFile.TabIndex = 1;
+            // 
+            // button3DSeedFile
+            // 
+            this.button3DSeedFile.Location = new System.Drawing.Point(387, 83);
+            this.button3DSeedFile.Name = "button3DSeedFile";
+            this.button3DSeedFile.Size = new System.Drawing.Size(26, 20);
+            this.button3DSeedFile.TabIndex = 2;
+            this.button3DSeedFile.Text = "...";
+            this.button3DSeedFile.UseVisualStyleBackColor = true;
+            this.button3DSeedFile.Click += new System.EventHandler(this.button3DSeedFile_Click);
+            // 
+            // ExportDGNOptionsForm
+            // 
+            this.AcceptButton = this.buttonOK;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.buttonCancel;
+            this.ClientSize = new System.Drawing.Size(448, 372);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.checkBoxHideUnrefereceViewTag);
+            this.Controls.Add(this.checkBoxHideReferencePlanes);
+            this.Controls.Add(this.checkBoxHideScopeBoxes);
+            this.Controls.Add(this.labelExportFormat);
+            this.Controls.Add(this.comboBoxExportFileFormat);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonOK);
+            this.Controls.Add(this.comboBoxLayerSettings);
+            this.Controls.Add(this.labelLayerMapping);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "ExportDGNOptionsForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Export DGN Options";
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label labelLayerMapping;
+        private System.Windows.Forms.ComboBox comboBoxLayerSettings;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.Button buttonOK;
+        private System.Windows.Forms.ComboBox comboBoxExportFileFormat;
+        private System.Windows.Forms.Label labelExportFormat;
+        private System.Windows.Forms.CheckBox checkBoxHideScopeBoxes;
+        private System.Windows.Forms.CheckBox checkBoxHideReferencePlanes;
+        private System.Windows.Forms.CheckBox checkBoxHideUnrefereceViewTag;
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.Button button3DSeedFile;
+        private System.Windows.Forms.Button button2DSeedFile;
+        private System.Windows.Forms.TextBox textBox3DSeedFile;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.TextBox textBox2DSeedFile;
+        private System.Windows.Forms.Label label1;
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDGNOptionsForm.cs

@@ -0,0 +1,175 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+using System.IO;
+using System.Reflection;
+using System.Diagnostics;
+
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which provides the options for exporting dgn format
+    /// </summary>
+    public partial class ExportDGNOptionsForm : System.Windows.Forms.Form
+    {
+        /// <summary>
+        /// data class
+        /// </summary>
+        private ExportDGNData m_data;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="data">Data class object</param>
+        public ExportDGNOptionsForm(ExportDGNData data)
+        {
+            m_data = data;
+            InitializeComponent();
+            InitializeControl();
+        }
+
+        /// <summary>
+        /// Initialize values and status of controls
+        /// </summary>
+        private void InitializeControl()
+        {
+            comboBoxLayerSettings.DataSource = m_data.LayerMapping;
+            comboBoxLayerSettings.SelectedIndex = 0;
+            comboBoxExportFileFormat.DataSource = m_data.ExportFileVersions;
+            comboBoxExportFileFormat.SelectedIndex = 0;
+            checkBoxHideReferencePlanes.Checked = false;
+            checkBoxHideScopeBoxes.Checked = false;
+            checkBoxHideUnrefereceViewTag.Checked = false;
+        }
+
+        /// <summary>
+        /// OK button click event
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonOK_Click(object sender, EventArgs e)
+        {
+            if (String.IsNullOrEmpty(textBox2DSeedFile.Text))
+            {
+                TaskDialog.Show("Specify 2D seed file", "Please specify the 2D seed file.", TaskDialogCommonButtons.Ok);
+                button2DSeedFile.Focus();
+                return;
+            }
+
+            if (!File.Exists(textBox2DSeedFile.Text))
+            {
+                TaskDialog.Show("Specify 2D seed file", "The 2D seed file does not exist.", TaskDialogCommonButtons.Ok);
+                button2DSeedFile.Focus();
+                return;
+            }
+
+            if (String.IsNullOrEmpty(textBox3DSeedFile.Text))
+            {
+                TaskDialog.Show("Specify 3D seed file", "Please specify the 3D seed file.", TaskDialogCommonButtons.Ok);
+                button3DSeedFile.Focus();
+                return;
+            }
+
+            if (!File.Exists(textBox3DSeedFile.Text))
+            {
+                TaskDialog.Show("Specify 3D seed file", "The 3D seed file does not exist.", TaskDialogCommonButtons.Ok);
+                button3DSeedFile.Focus();
+                return;
+            }
+
+            m_data.ExportLayerMapping =
+                m_data.EnumLayerMapping[comboBoxLayerSettings.SelectedIndex];
+            m_data.ExportFileVersion = m_data.ExportFileVersions[comboBoxExportFileFormat.SelectedIndex];
+            m_data.HideScopeBox = checkBoxHideScopeBoxes.Checked;
+            m_data.HideReferencePlane = checkBoxHideReferencePlanes.Checked;
+            m_data.HideUnreferenceViewTags = checkBoxHideUnrefereceViewTag.Checked;
+            this.Close();
+        }
+
+        /// <summary>
+        /// button2DSeedFile click event
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void button2DSeedFile_Click(object sender, EventArgs e)
+        {
+            String fileName = String.Empty;
+            DialogResult result = ShowOpenDialog(ref fileName);
+            if (result != DialogResult.Cancel)
+            {
+                textBox2DSeedFile.Text = fileName;
+            }
+        }
+
+        /// <summary>
+        /// Show open file dialog
+        /// </summary>
+        /// <param name="returnFileName"></param>
+        /// <returns></returns>
+        public static DialogResult ShowOpenDialog(ref String returnFileName)
+        {
+            ProcessModule mainModule = Process.GetCurrentProcess().MainModule;
+            String folderRevit = Path.GetDirectoryName(mainModule.FileName);
+            String folderACADInterop = Path.Combine(folderRevit, "ACADInterop");
+            String initialDirectory = folderRevit;
+            if (Directory.Exists(folderACADInterop))
+            {
+                initialDirectory = folderACADInterop;
+            }
+
+            using (OpenFileDialog openFileDialog = new OpenFileDialog())
+            {
+                openFileDialog.Title = "Specify seed file";
+                openFileDialog.InitialDirectory = initialDirectory;
+                openFileDialog.Filter = "DGN Files |*.dgn";
+                openFileDialog.RestoreDirectory = true;
+
+                DialogResult result = openFileDialog.ShowDialog();
+                if (result != DialogResult.Cancel)
+                {
+                    returnFileName = openFileDialog.FileName;
+                }
+
+                return result;
+            }
+        }
+
+        private void button3DSeedFile_Click(object sender, EventArgs e)
+        {
+            String fileName = String.Empty;
+            DialogResult result = ShowOpenDialog(ref fileName);
+            if (result != DialogResult.Cancel)
+            {
+                textBox3DSeedFile.Text = fileName;
+            }
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDGNOptionsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/ExportDWFData.cs

@@ -0,0 +1,248 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Reflection;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the information for exporting 2D DWF format
+    /// </summary>
+    public class ExportDWFData : ExportDataWithViews
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Whether export object data
+        /// </summary>
+        private bool m_exportObjectData;
+        /// <summary>
+        /// Whether export areas
+        /// </summary>
+        private bool m_exportAreas;
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        private bool m_exportMergeFiles;
+        /// <summary>
+        /// List of image quality for DWF export
+        /// </summary>
+        List<Autodesk.Revit.DB.DWFImageQuality> m_ImageQualities;
+        /// <summary>
+        /// Selected image quality for DWF export
+        /// </summary>
+        Autodesk.Revit.DB.DWFImageQuality m_dwfImageQuality;
+        /// <summary>
+        /// Selected image format for DWF export
+        /// </summary>
+        Autodesk.Revit.DB.DWFImageFormat m_dwfImageFormat;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Whether export object data
+        /// </summary>
+        public bool ExportObjectData
+        {
+            get 
+            { 
+                return m_exportObjectData; 
+            }
+            set 
+            { 
+                m_exportObjectData = value; 
+            }
+        }
+
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        public bool ExportMergeFiles
+        {
+            get
+            {
+                return m_exportMergeFiles;
+            }
+            set
+            {
+                m_exportMergeFiles = value;
+            }
+        }  
+
+        /// <summary>
+        /// Whether export areas
+        /// </summary>
+        public bool ExportAreas
+        {
+            get
+            {
+                return m_exportAreas;
+            }
+            set
+            {
+                m_exportAreas = value;
+            }
+        }
+
+        /// <summary>
+        /// Selected image format for DWF export
+        /// </summary>
+        public Autodesk.Revit.DB.DWFImageFormat DwfImageFormat
+        {
+            get 
+            { 
+                return m_dwfImageFormat; 
+            }
+            set 
+            { 
+                m_dwfImageFormat = value; 
+            }
+        }
+
+        /// <summary>
+        /// Selected image quality for DWF export
+        /// </summary>
+        public Autodesk.Revit.DB.DWFImageQuality DwfImageQuality
+        {
+            get 
+            { 
+                return m_dwfImageQuality; 
+            }
+            set 
+            { 
+                m_dwfImageQuality = value; 
+            }
+        }
+
+        /// <summary>
+        /// List of image quality for DWF export
+        /// </summary>
+        public List<Autodesk.Revit.DB.DWFImageQuality> ImageQualities
+        {
+            get 
+            { 
+                return m_ImageQualities; 
+            }
+            set 
+            { 
+                m_ImageQualities = value; 
+            }
+        }
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportDWFData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            m_exportObjectData = true;
+            m_exportAreas = false;
+            m_exportMergeFiles = true;
+            m_ImageQualities = new List<Autodesk.Revit.DB.DWFImageQuality>();
+            m_ImageQualities.Add(Autodesk.Revit.DB.DWFImageQuality.Low);
+            m_ImageQualities.Add(Autodesk.Revit.DB.DWFImageQuality.Medium);
+            m_ImageQualities.Add(Autodesk.Revit.DB.DWFImageQuality.High);
+
+            // Export DWF
+            if (m_exportFormat == ExportFormat.DWF)
+            {
+                m_filter = "DWF Files |*.dwf";
+                m_title = "Export DWF";
+            }
+            // Export DWFx
+            else
+            {
+                m_filter = "DWFx Files |*.dwfx";
+                m_title = "Export DWFx";
+            }
+        }
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            Transaction transaction = new Transaction(m_activeDoc, "Export_To_DWF");
+            transaction.Start();
+            bool exported = false;
+            base.Export();
+
+            //parameter : ViewSet views
+            ViewSet views = new ViewSet();
+            if (m_currentViewOnly)
+            {
+                views.Insert(m_activeDoc.ActiveView);
+            }
+            else
+            {
+                views = m_selectViewsData.SelectedViews;
+            }
+
+            // Export DWFx
+            if (m_exportFormat == ExportFormat.DWFx)
+            {
+                DWFXExportOptions options = new DWFXExportOptions();
+                options.ExportObjectData = m_exportObjectData;
+                options.ExportingAreas = m_exportAreas;
+                options.MergedViews = m_exportMergeFiles;
+                options.ImageFormat = m_dwfImageFormat;
+                options.ImageQuality = m_dwfImageQuality;
+                exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, options);
+            }
+            // Export DWF
+            else
+            {
+                DWFExportOptions options = new DWFExportOptions();
+                options.ExportObjectData = m_exportObjectData;
+                options.ExportingAreas = m_exportAreas;
+                options.MergedViews = m_exportMergeFiles;
+                options.ImageFormat = m_dwfImageFormat;
+                options.ImageQuality = m_dwfImageQuality;
+                exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, options);
+            }
+            transaction.Commit();
+
+            return exported;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDWFOptionForm.Designer.cs

@@ -0,0 +1,232 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which provides the options of lower priority information 
+    /// for export DWF format
+    /// </summary>
+    partial class ExportDWFOptionForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.checkBoxRoomsAndAreas = new System.Windows.Forms.CheckBox();
+            this.checkBoxModelElements = new System.Windows.Forms.CheckBox();
+            this.buttonOK = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.checkBoxMergeViews = new System.Windows.Forms.CheckBox();
+            this.groupBoxGraphicsSetting = new System.Windows.Forms.GroupBox();
+            this.comboBoxImageQuality = new System.Windows.Forms.ComboBox();
+            this.labelImageQuality = new System.Windows.Forms.Label();
+            this.radioButtonCompressedFormat = new System.Windows.Forms.RadioButton();
+            this.radioButtonStandardFormat = new System.Windows.Forms.RadioButton();
+            this.groupBox1.SuspendLayout();
+            this.groupBoxGraphicsSetting.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.checkBoxRoomsAndAreas);
+            this.groupBox1.Controls.Add(this.checkBoxModelElements);
+            this.groupBox1.Location = new System.Drawing.Point(13, 13);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(308, 68);
+            this.groupBox1.TabIndex = 0;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "Export Object Data";
+            // 
+            // checkBoxRoomsAndAreas
+            // 
+            this.checkBoxRoomsAndAreas.AutoSize = true;
+            this.checkBoxRoomsAndAreas.Location = new System.Drawing.Point(10, 43);
+            this.checkBoxRoomsAndAreas.Name = "checkBoxRoomsAndAreas";
+            this.checkBoxRoomsAndAreas.Size = new System.Drawing.Size(110, 17);
+            this.checkBoxRoomsAndAreas.TabIndex = 0;
+            this.checkBoxRoomsAndAreas.Text = "Rooms and Areas";
+            this.checkBoxRoomsAndAreas.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxModelElements
+            // 
+            this.checkBoxModelElements.AutoSize = true;
+            this.checkBoxModelElements.Location = new System.Drawing.Point(10, 20);
+            this.checkBoxModelElements.Name = "checkBoxModelElements";
+            this.checkBoxModelElements.Size = new System.Drawing.Size(100, 17);
+            this.checkBoxModelElements.TabIndex = 0;
+            this.checkBoxModelElements.Text = "Model Elements";
+            this.checkBoxModelElements.UseVisualStyleBackColor = true;
+            this.checkBoxModelElements.CheckedChanged += new System.EventHandler(this.checkBoxModelElements_CheckedChanged);
+            // 
+            // buttonOK
+            // 
+            this.buttonOK.DialogResult = System.Windows.Forms.DialogResult.OK;
+            this.buttonOK.Location = new System.Drawing.Point(114, 230);
+            this.buttonOK.Name = "buttonOK";
+            this.buttonOK.Size = new System.Drawing.Size(91, 23);
+            this.buttonOK.TabIndex = 1;
+            this.buttonOK.Text = "&OK";
+            this.buttonOK.UseVisualStyleBackColor = true;
+            this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.Location = new System.Drawing.Point(220, 230);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(101, 23);
+            this.buttonCancel.TabIndex = 1;
+            this.buttonCancel.Text = "&Cancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxMergeViews
+            // 
+            this.checkBoxMergeViews.AutoSize = true;
+            this.checkBoxMergeViews.Location = new System.Drawing.Point(23, 195);
+            this.checkBoxMergeViews.Name = "checkBoxMergeViews";
+            this.checkBoxMergeViews.Size = new System.Drawing.Size(226, 17);
+            this.checkBoxMergeViews.TabIndex = 4;
+            this.checkBoxMergeViews.Text = "Create separate files for each view/sheet";
+            this.checkBoxMergeViews.UseVisualStyleBackColor = true;
+            // 
+            // groupBoxGraphicsSetting
+            // 
+            this.groupBoxGraphicsSetting.Controls.Add(this.comboBoxImageQuality);
+            this.groupBoxGraphicsSetting.Controls.Add(this.labelImageQuality);
+            this.groupBoxGraphicsSetting.Controls.Add(this.radioButtonCompressedFormat);
+            this.groupBoxGraphicsSetting.Controls.Add(this.radioButtonStandardFormat);
+            this.groupBoxGraphicsSetting.Location = new System.Drawing.Point(13, 88);
+            this.groupBoxGraphicsSetting.Name = "groupBoxGraphicsSetting";
+            this.groupBoxGraphicsSetting.Size = new System.Drawing.Size(308, 100);
+            this.groupBoxGraphicsSetting.TabIndex = 5;
+            this.groupBoxGraphicsSetting.TabStop = false;
+            this.groupBoxGraphicsSetting.Text = "Graphics Settings";
+            // 
+            // comboBoxImageQuality
+            // 
+            this.comboBoxImageQuality.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBoxImageQuality.FormattingEnabled = true;
+            this.comboBoxImageQuality.Location = new System.Drawing.Point(129, 66);
+            this.comboBoxImageQuality.Name = "comboBoxImageQuality";
+            this.comboBoxImageQuality.Size = new System.Drawing.Size(163, 21);
+            this.comboBoxImageQuality.TabIndex = 3;
+            // 
+            // labelImageQuality
+            // 
+            this.labelImageQuality.AutoSize = true;
+            this.labelImageQuality.Location = new System.Drawing.Point(54, 69);
+            this.labelImageQuality.Name = "labelImageQuality";
+            this.labelImageQuality.Size = new System.Drawing.Size(78, 13);
+            this.labelImageQuality.TabIndex = 2;
+            this.labelImageQuality.Text = "Image Quality:";
+            // 
+            // radioButtonCompressedFormat
+            // 
+            this.radioButtonCompressedFormat.AutoSize = true;
+            this.radioButtonCompressedFormat.Location = new System.Drawing.Point(10, 41);
+            this.radioButtonCompressedFormat.Name = "radioButtonCompressedFormat";
+            this.radioButtonCompressedFormat.Size = new System.Drawing.Size(170, 17);
+            this.radioButtonCompressedFormat.TabIndex = 0;
+            this.radioButtonCompressedFormat.TabStop = true;
+            this.radioButtonCompressedFormat.Text = "Use compressed raster format";
+            this.radioButtonCompressedFormat.UseVisualStyleBackColor = true;
+            this.radioButtonCompressedFormat.CheckedChanged += new System.EventHandler(this.radioButtonCompressedFormat_CheckedChanged);
+            // 
+            // radioButtonStandardFormat
+            // 
+            this.radioButtonStandardFormat.AutoSize = true;
+            this.radioButtonStandardFormat.Location = new System.Drawing.Point(10, 20);
+            this.radioButtonStandardFormat.Name = "radioButtonStandardFormat";
+            this.radioButtonStandardFormat.Size = new System.Drawing.Size(124, 17);
+            this.radioButtonStandardFormat.TabIndex = 0;
+            this.radioButtonStandardFormat.TabStop = true;
+            this.radioButtonStandardFormat.Text = "Use standard format";
+            this.radioButtonStandardFormat.UseVisualStyleBackColor = true;
+            // 
+            // ExportDWFOptionForm
+            // 
+            this.AcceptButton = this.buttonOK;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.buttonCancel;
+            this.ClientSize = new System.Drawing.Size(335, 262);
+            this.Controls.Add(this.groupBoxGraphicsSetting);
+            this.Controls.Add(this.checkBoxMergeViews);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonOK);
+            this.Controls.Add(this.groupBox1);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "ExportDWFOptionForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Export DWF Options";
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            this.groupBoxGraphicsSetting.ResumeLayout(false);
+            this.groupBoxGraphicsSetting.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.CheckBox checkBoxRoomsAndAreas;
+        private System.Windows.Forms.CheckBox checkBoxModelElements;
+        private System.Windows.Forms.Button buttonOK;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.CheckBox checkBoxMergeViews;
+        private System.Windows.Forms.GroupBox groupBoxGraphicsSetting;
+        private System.Windows.Forms.ComboBox comboBoxImageQuality;
+        private System.Windows.Forms.Label labelImageQuality;
+        private System.Windows.Forms.RadioButton radioButtonCompressedFormat;
+        private System.Windows.Forms.RadioButton radioButtonStandardFormat;
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDWFOptionForm.cs

@@ -0,0 +1,99 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores information of lower priority for exporting DWF(x) format.
+    /// </summary>
+    public partial class ExportDWFOptionForm : System.Windows.Forms.Form
+    {
+        /// <summary>
+        /// ExportDWFData object
+        /// </summary>
+        private ExportDWFData m_data;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="data">Data class object</param>
+        public ExportDWFOptionForm(ExportDWFData data)
+        {
+            m_data = data;
+            InitializeComponent();
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize controls
+        /// </summary>
+        private void Initialize()
+        {
+            checkBoxModelElements.Checked = m_data.ExportObjectData;
+            checkBoxRoomsAndAreas.Checked = m_data.ExportAreas;
+            radioButtonStandardFormat.Checked = true;
+            radioButtonCompressedFormat.Checked = false;
+            labelImageQuality.Enabled = false;
+            comboBoxImageQuality.Enabled = false;
+            comboBoxImageQuality.DataSource = m_data.ImageQualities;
+            checkBoxMergeViews.Enabled = !m_data.CurrentViewOnly;
+            checkBoxMergeViews.Checked = !m_data.CurrentViewOnly;
+            checkBoxMergeViews.Text = "Combine selected views and sheets into a single file";
+        }
+
+        private void buttonOK_Click(object sender, EventArgs e)
+        {
+            m_data.ExportObjectData = checkBoxModelElements.Checked;
+            m_data.ExportAreas = checkBoxRoomsAndAreas.Enabled ? checkBoxRoomsAndAreas.Checked : false;
+            m_data.ExportMergeFiles = checkBoxMergeViews.Checked;
+            if (radioButtonStandardFormat.Checked)
+            {
+                m_data.DwfImageFormat = Autodesk.Revit.DB.DWFImageFormat.Lossless;
+                m_data.DwfImageQuality = Autodesk.Revit.DB.DWFImageQuality.Default;
+            }
+            else
+            {
+                m_data.DwfImageFormat = Autodesk.Revit.DB.DWFImageFormat.Lossy;
+                m_data.DwfImageQuality = m_data.ImageQualities[comboBoxImageQuality.SelectedIndex];
+            }
+        }
+
+        private void checkBoxModelElements_CheckedChanged(object sender, EventArgs e)
+        {
+            checkBoxRoomsAndAreas.Enabled = checkBoxModelElements.Checked ? true : false;
+        }
+
+        private void radioButtonCompressedFormat_CheckedChanged(object sender, EventArgs e)
+        {
+            labelImageQuality.Enabled = radioButtonCompressedFormat.Checked;
+            comboBoxImageQuality.Enabled = radioButtonCompressedFormat.Checked;
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDWFOptionForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/ExportDWGData.cs

@@ -0,0 +1,199 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the main information for exporting dwg format
+    /// </summary>
+    public class ExportDWGData : ExportDataWithViews
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Data class ExportOptionsData
+        /// </summary>
+        private ExportBaseOptionsData m_exportOptionsData;
+
+        /// <summary>
+        /// String list of AutoCAD versions
+        /// </summary>
+        private List<String> m_fileVersion;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.ACADVersion defined in Revit
+        /// </summary>
+        private List<Autodesk.Revit.DB.ACADVersion> m_enumFileVersion;
+
+        /// <summary>
+        /// File version option to export
+        /// </summary>
+        private Autodesk.Revit.DB.ACADVersion m_exportFileVersion;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Data class ExportOptionsData
+        /// </summary>
+        public ExportBaseOptionsData ExportOptionsData
+        {
+            get 
+            { 
+                return m_exportOptionsData; 
+            }
+            set 
+            { 
+                m_exportOptionsData = value; 
+            }
+        }
+  
+        /// <summary>
+        /// String collection of AutoCAD versions
+        /// </summary>
+        public ReadOnlyCollection<String> FileVersion
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<String>(m_fileVersion); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.ACADVersion defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion> EnumFileVersion
+        {            
+            get 
+            {
+                return new ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion>(m_enumFileVersion); 
+            }
+        }
+
+        /// <summary>
+        /// File version option to export
+        /// </summary>
+        public Autodesk.Revit.DB.ACADVersion ExportFileVersion
+        {
+            get 
+            { 
+                return m_exportFileVersion; 
+            }
+            set 
+            { 
+                m_exportFileVersion = value; 
+            }
+        }        
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportDWGData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            m_exportOptionsData = new ExportBaseOptionsData();
+
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //AutoCAD versions
+            m_fileVersion = new List<String>();
+            m_enumFileVersion = new List<Autodesk.Revit.DB.ACADVersion>();
+            m_fileVersion.Add("AutoCAD 2013 DWG Files (*.dwg)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2013);
+            m_fileVersion.Add("AutoCAD 2010 DWG Files (*.dwg)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2010);
+            m_fileVersion.Add("AutoCAD 2007 DWG Files (*.dwg)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2007);
+
+
+            StringBuilder tmp = new StringBuilder();
+            foreach (String version in m_fileVersion)
+            {
+                tmp.Append(version + "|*.dwg|");
+            }
+            m_filter = tmp.ToString().TrimEnd('|');
+            m_title = "Export DWG";
+        }
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            base.Export();
+
+            bool exported = false;
+            //parameter :  views
+            IList<ElementId> views = new List<ElementId>();
+            if (m_currentViewOnly)
+            {
+                views.Add(m_activeDoc.ActiveView.Id);
+            }
+            else
+            {
+                foreach (View view in m_selectViewsData.SelectedViews)
+                {
+                    views.Add(view.Id);
+                }
+            }
+
+            // Default values
+            m_exportFileVersion = ACADVersion.R2010;
+            //parameter : DWGExportOptions dwgExportOptions
+            DWGExportOptions dwgExportOptions = new DWGExportOptions();
+            dwgExportOptions.ExportingAreas = m_exportOptionsData.ExportAreas;
+            dwgExportOptions.ExportOfSolids = m_exportOptionsData.ExportSolid;
+            dwgExportOptions.FileVersion = m_exportFileVersion;
+            dwgExportOptions.LayerMapping = m_exportOptionsData.ExportLayerMapping;
+            dwgExportOptions.LineScaling = m_exportOptionsData.ExportLineScaling;
+            dwgExportOptions.MergedViews = m_exportOptionsData.ExportMergeFiles;
+            dwgExportOptions.PropOverrides = m_exportOptionsData.ExportLayersAndProperties;
+            dwgExportOptions.SharedCoords = m_exportOptionsData.ExportCoorSystem;
+            dwgExportOptions.TargetUnit = m_exportOptionsData.ExportUnit;
+
+            //Export
+            exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, dwgExportOptions);
+
+            return exported;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDWGOptionsData.cs

@@ -0,0 +1,469 @@
+//
+// (C) Copyright 2003-2014 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores lower priority information for exporting dwg format
+    /// </summary>
+    public class ExportDWGOptionsData
+    {
+        #region Class Memeber Variables
+        /// <summary>
+        /// String list of Layers and properties used in UI
+        /// </summary>
+        List<String> m_layersAndProperties;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.PropOverrideMode
+        /// </summary>
+        List<Autodesk.Revit.DB.PropOverrideMode> m_enumLayersAndProperties;
+
+        /// <summary>
+        /// String list of Layer Settings used in UI
+        /// </summary>
+        List<String> m_layerMapping;
+
+        /// <summary>
+        /// String list of layer settings values defined in Revit 
+        /// </summary>
+        List<String> m_enumLayerMapping;
+
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        String m_exportLayerMapping;
+
+        /// <summary>
+        /// String list of Linetype scaling used in UI
+        /// </summary>
+        List<String> m_lineScaling;
+
+        /// <summary>
+        /// PropOverrideMode Option to export
+        /// </summary>
+        Autodesk.Revit.DB.PropOverrideMode m_exportLayersAndProperties;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.LineScaling defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.LineScaling> m_enumLineScaling;
+
+        /// <summary>
+        /// Line scaling option to export
+        /// </summary>
+        Autodesk.Revit.DB.LineScaling m_exportLineScaling;
+
+        /// <summary>
+        /// String list of Coordinate system basis
+        /// </summary>
+        List<String> m_coorSystem;
+
+        /// <summary>
+        /// List of values whether to use shared coordinate system
+        /// </summary>
+        List<bool> m_enumCoorSystem;
+
+        /// <summary>
+        /// Coordinate system basis option to export
+        /// </summary>
+        bool m_exportCoorSystem;
+
+        /// <summary>
+        /// String list of DWG unit
+        /// </summary>
+        List<String> m_units;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.ExportUnit values defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.ExportUnit> m_enumUnits;
+
+        /// <summary>
+        /// Export unit option to export
+        /// </summary>
+        Autodesk.Revit.DB.ExportUnit m_exportUnit;
+
+        /// <summary>
+        /// String list of solid used in UI
+        /// </summary>
+        List<String> m_solids;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.SolidGeometry defined in Revit
+        /// </summary>
+        List<Autodesk.Revit.DB.SolidGeometry> m_enumSolids;
+
+        /// <summary>
+        /// Solid geometry option to export
+        /// </summary>
+        Autodesk.Revit.DB.SolidGeometry m_exportSolid;
+
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        bool m_exportMergeFiles;
+
+        //Export rooms and areas as polylines
+        bool m_exportAreas;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// String collection of Layers and properties used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LayersAndProperties
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<String>(m_layersAndProperties); 
+            }
+        }        
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.PropOverrideMode
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.PropOverrideMode> EnumLayersAndProperties
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.PropOverrideMode>(m_enumLayersAndProperties); 
+            }
+        } 
+
+        /// <summary>
+        /// PropOverrideMode Option to export
+        /// </summary>
+        public Autodesk.Revit.DB.PropOverrideMode ExportLayersAndProperties
+        {
+            get 
+            { 
+                return m_exportLayersAndProperties; 
+            }
+            set 
+            { 
+                m_exportLayersAndProperties = value; 
+            }
+        }
+
+        /// <summary>
+        /// String collection of Layer Settings used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LayerMapping
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_layerMapping); 
+            }
+        }  
+
+        /// <summary>
+        /// String collection of layer settings values defined in Revit  
+        /// </summary>
+        public ReadOnlyCollection<String> EnumLayerMapping
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_enumLayerMapping); 
+            }
+        }
+
+        /// <summary>
+        /// Layer setting option to export
+        /// </summary>
+        public String ExportLayerMapping
+        {
+            get 
+            { 
+                return m_exportLayerMapping; 
+            }
+            set 
+            { 
+                m_exportLayerMapping = value;
+            }
+        }
+
+        /// <summary>
+        /// String collection of Linetype scaling used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> LineScaling
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_lineScaling); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.LineScaling defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.LineScaling> EnumLineScaling
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.LineScaling>(m_enumLineScaling); 
+            }
+        }      
+
+        /// <summary>
+        /// Line scaling option to export
+        /// </summary>
+        public Autodesk.Revit.DB.LineScaling ExportLineScaling
+        {
+            get 
+            { 
+                return m_exportLineScaling; 
+            }
+            set 
+            { 
+                m_exportLineScaling = value;
+            }
+        }
+
+        /// <summary>
+        /// String collection of Coordinate system basis
+        /// </summary>
+        public ReadOnlyCollection<String> CoorSystem
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_coorSystem); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of values whether to use shared coordinate system
+        /// </summary>
+        public ReadOnlyCollection<bool> EnumCoorSystem
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<bool>(m_enumCoorSystem); 
+            }
+        }   
+
+        /// <summary>
+        /// Coordinate system basis option to export
+        /// </summary>
+        public bool ExportCoorSystem
+        {
+            get 
+            { 
+                return m_exportCoorSystem; 
+            }
+            set 
+            { 
+                m_exportCoorSystem = value;
+            }
+        } 
+
+        /// <summary>
+        /// String collection of DWG unit
+        /// </summary>
+        public ReadOnlyCollection<String> Units
+        {
+            get 
+            {
+                return new ReadOnlyCollection<String>(m_units); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.ExportUnit values defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.ExportUnit> EnumUnits
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.ExportUnit>(m_enumUnits); 
+            }
+        }  
+
+        /// <summary>
+        /// Export unit option to export
+        /// </summary>
+        public Autodesk.Revit.DB.ExportUnit ExportUnit
+        {
+            get 
+            { 
+                return m_exportUnit; 
+            }
+            set 
+            { 
+                m_exportUnit = value; 
+            }
+        }    
+
+        /// <summary>
+        /// String collection of solid used in UI
+        /// </summary>
+        public ReadOnlyCollection<String> Solids
+        {
+            get
+            {
+                return new ReadOnlyCollection<String>(m_solids);
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.SolidGeometry defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.SolidGeometry> EnumSolids
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<Autodesk.Revit.DB.SolidGeometry>(m_enumSolids);
+            }
+        }
+
+        /// <summary>
+        /// Property of solid geometry option to export
+        /// </summary>
+        public Autodesk.Revit.DB.SolidGeometry ExportSolid
+        {
+            get 
+            {
+                return m_exportSolid; 
+            }
+            set 
+            { 
+                m_exportSolid = value;
+            }
+        }
+
+        /// <summary>
+        /// Export rooms and areas as polylines
+        /// </summary>
+        public bool ExportAreas
+        {
+            get 
+            { 
+                return m_exportAreas;
+            }
+            set 
+            {
+                m_exportAreas = value; 
+            }
+        }
+
+        /// <summary>
+        /// Whether to create separate files for each view/sheet
+        /// </summary>
+        public bool ExportMergeFiles
+        {
+            get
+            {
+                return m_exportMergeFiles;
+            }
+            set
+            {
+                m_exportMergeFiles = value;
+            }
+        } 
+        #endregion
+
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        public ExportDWGOptionsData()
+        {
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize values
+        /// </summary>
+        void Initialize()
+        {
+            //Layers and properties:
+            m_layersAndProperties = new List<String>();
+            m_enumLayersAndProperties = new List<Autodesk.Revit.DB.PropOverrideMode>();
+            m_layersAndProperties.Add("Category properties BYLAYER, overrides BYENTITY");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.ByEntity);
+            m_layersAndProperties.Add("All properties BYLAYER, no overrides");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.ByLayer);
+            m_layersAndProperties.Add("All properties BYLAYER, new Layers for overrides");
+            m_enumLayersAndProperties.Add(Autodesk.Revit.DB.PropOverrideMode.NewLayer);
+
+            //Layer Settings:
+            m_layerMapping = new List<String>();
+            m_enumLayerMapping = new List<String>();
+            m_layerMapping.Add("AIA - American Institute of Architects standard");
+            m_enumLayerMapping.Add("AIA");
+            m_layerMapping.Add("ISO13567 - ISO standard 13567");
+            m_enumLayerMapping.Add("ISO13567");
+            m_layerMapping.Add("CP83 - Singapore standard 83");
+            m_enumLayerMapping.Add("CP83");
+            m_layerMapping.Add("BS1192 - British standard 1192");
+            m_enumLayerMapping.Add("BS1192");
+
+            //Linetype scaling:
+            m_lineScaling = new List<String>();
+            m_enumLineScaling = new List<Autodesk.Revit.DB.LineScaling>();
+            m_lineScaling.Add("Scaled Linetype definitions");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.ViewScale);
+            m_lineScaling.Add("ModelSpace (PSLTSCALE = 0)");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.ModelSpace);
+            m_lineScaling.Add("Paperspace (PSLTSCALE = 1)");
+            m_enumLineScaling.Add(Autodesk.Revit.DB.LineScaling.PaperSpace);
+
+            //Coordinate system basis
+            m_coorSystem = new List<String>();
+            m_enumCoorSystem = new List<bool>();
+            m_coorSystem.Add("Project Internal");
+            m_enumCoorSystem.Add(false);
+            m_coorSystem.Add("Shared");
+            m_enumCoorSystem.Add(true);
+
+            //One DWG unit
+            m_units = new List<String>();
+            m_enumUnits = new List<Autodesk.Revit.DB.ExportUnit>();
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Foot.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Foot);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Inch.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Inch);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Meter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Meter);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Centimeter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Centimeter);
+            m_units.Add(Autodesk.Revit.DB.ExportUnit.Millimeter.ToString().ToLower());
+            m_enumUnits.Add(Autodesk.Revit.DB.ExportUnit.Millimeter);
+
+            m_solids = new List<String>();
+            m_enumSolids = new List<Autodesk.Revit.DB.SolidGeometry>();
+            m_solids.Add("Export as polymesh");
+            m_enumSolids.Add(Autodesk.Revit.DB.SolidGeometry.Polymesh);
+            m_solids.Add("Export as ACIS solids");
+            m_enumSolids.Add(Autodesk.Revit.DB.SolidGeometry.ACIS);
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDXFData.cs

@@ -0,0 +1,198 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;using System.Windows.Forms;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the main information for exporting dxf format
+    /// </summary>
+    public class ExportDXFData : ExportDataWithViews
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Data class ExportOptionsData
+        /// </summary>
+        private ExportBaseOptionsData m_exportOptionsData;
+
+        /// <summary>
+        /// String list of AutoCAD versions
+        /// </summary>
+        private List<String> m_fileVersion;
+
+        /// <summary>
+        /// List of Autodesk.Revit.DB.ACADVersion defined in Revit
+        /// </summary>
+        private List<Autodesk.Revit.DB.ACADVersion> m_enumFileVersion;
+
+        /// <summary>
+        /// File version option to export
+        /// </summary>
+        private Autodesk.Revit.DB.ACADVersion m_exportFileVersion;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Data class ExportOptionsData
+        /// </summary>
+        public ExportBaseOptionsData ExportOptionsData
+        {
+            get 
+            { 
+                return m_exportOptionsData; 
+            }
+            set 
+            { 
+                m_exportOptionsData = value; 
+            }
+        }
+  
+        /// <summary>
+        /// String collection of AutoCAD versions
+        /// </summary>
+        public ReadOnlyCollection<String> FileVersion
+        {
+            get 
+            { 
+                return new ReadOnlyCollection<String>(m_fileVersion); 
+            }
+        }
+
+        /// <summary>
+        /// Collection of Autodesk.Revit.DB.ACADVersion defined in Revit
+        /// </summary>
+        public ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion> EnumFileVersion
+        {            
+            get 
+            {
+                return new ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion>(m_enumFileVersion); 
+            }
+        }
+
+        /// <summary>
+        /// File version option to export
+        /// </summary>
+        public Autodesk.Revit.DB.ACADVersion ExportFileVersion
+        {
+            get 
+            { 
+                return m_exportFileVersion; 
+            }
+            set 
+            { 
+                m_exportFileVersion = value; 
+            }
+        }        
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportDXFData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            m_exportOptionsData = new ExportBaseOptionsData();
+
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //AutoCAD versions
+            m_fileVersion = new List<String>();
+            m_enumFileVersion = new List<Autodesk.Revit.DB.ACADVersion>();
+            m_fileVersion.Add("AutoCAD 2013 DXF Files (*.dxf)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2013);
+            m_fileVersion.Add("AutoCAD 2010 DXF Files (*.dxf)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2010);
+            m_fileVersion.Add("AutoCAD 2007 DXF Files (*.dxf)");
+            m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2007);
+
+            StringBuilder tmp = new StringBuilder();
+            foreach (String version in m_fileVersion)
+            {
+                tmp.Append(version + "|*.dxf|");
+            }
+            m_filter = tmp.ToString().TrimEnd('|');
+            m_title = "Export DXF";
+        }
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            base.Export();
+
+            bool exported = false;
+
+            //parameter :  views
+            IList<ElementId> views = new List<ElementId>();
+            if (m_currentViewOnly)
+            {
+                views.Add(m_activeDoc.ActiveView.Id);
+            }
+            else
+            {
+                foreach (Autodesk.Revit.DB.View view in m_selectViewsData.SelectedViews)
+                {
+                    views.Add(view.Id);
+                }
+            }
+            // Default values
+            m_exportFileVersion = ACADVersion.R2010;
+            //parameter : DXFExportOptions dxfExportOptions
+            DXFExportOptions dxfExportOptions = new DXFExportOptions();
+            dxfExportOptions.ExportingAreas = m_exportOptionsData.ExportAreas;
+            dxfExportOptions.ExportOfSolids = m_exportOptionsData.ExportSolid;
+            dxfExportOptions.FileVersion = m_exportFileVersion;
+            dxfExportOptions.LayerMapping = m_exportOptionsData.ExportLayerMapping;
+            dxfExportOptions.LineScaling = m_exportOptionsData.ExportLineScaling;
+            //dxfExportOptions.MergedViews = m_exportOptionsData.ExportMergeFiles;
+            dxfExportOptions.PropOverrides = m_exportOptionsData.ExportLayersAndProperties;
+            dxfExportOptions.SharedCoords = m_exportOptionsData.ExportCoorSystem;
+            dxfExportOptions.TargetUnit = m_exportOptionsData.ExportUnit;
+
+            //Export
+            exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, dxfExportOptions);
+
+            return exported;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportData.cs

@@ -0,0 +1,338 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Base data class which stores the basic information for export
+    /// </summary>
+    public class ExportData
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Revit command data
+        /// </summary>
+        protected ExternalCommandData m_commandData;
+
+        /// <summary>
+        /// Active document
+        /// </summary>
+        protected Document m_activeDoc;
+
+        /// <summary>
+        /// File Name or Prefix to be used
+        /// </summary>
+        protected String m_exportFileName;
+
+        /// <summary>
+        /// Directory to store the exported file
+        /// </summary>
+        protected String m_exportFolder;
+
+        /// <summary>
+        /// ActiveDocument Name
+        /// </summary>
+        protected String m_activeDocName;
+
+        /// <summary>
+        /// ActiveView Name
+        /// </summary>
+        protected String m_activeViewName;
+
+
+        /// <summary>
+        /// Whether current view is a 3D view
+        /// </summary>
+        protected bool m_is3DView;
+
+        /// <summary>
+        /// The format to be exported
+        /// </summary>
+        protected ExportFormat m_exportFormat;
+
+        /// <summary>
+        /// The filter which will be used in file saving dialog
+        /// </summary>
+        protected String m_filter;
+
+        /// <summary>
+        /// The title of exporting dialog
+        /// </summary>
+        protected String m_title;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Revit command data
+        /// </summary>
+        public ExternalCommandData CommandData
+        {
+            get 
+            { 
+                return m_commandData; 
+            }
+        }
+
+        /// <summary>
+        /// ActiveDocument
+        /// </summary>
+        public Document ActiveDocument
+        {
+
+            get
+            {
+                return m_activeDoc;
+            }
+
+        }
+
+        /// <summary>
+        /// File Name or Prefix to be used
+        /// </summary>
+        public String ExportFileName
+        {
+            get 
+            { 
+                return m_exportFileName; 
+            }
+            set 
+            { 
+                m_exportFileName = value; 
+            }
+        }  
+
+        /// <summary>
+        /// Directory to store the exported file
+        /// </summary>
+        public String ExportFolder
+        {
+            get 
+            { 
+                return m_exportFolder; 
+            }
+            set 
+            { 
+                m_exportFolder = value; 
+            }
+        }
+
+
+        /// <summary>
+        /// ActiveDocument Name
+        /// </summary>
+        public String ActiveDocName
+        {
+            get
+            {
+                return m_activeDocName;
+            }
+            set
+            {
+                m_activeDocName = value;
+            }
+        
+        }
+
+        /// <summary>
+        /// ActiveView Name
+        /// </summary>
+        public String ActiveViewName
+        {
+            get
+            {
+                return m_activeViewName;
+            }
+            set
+            {
+                m_activeViewName = value;
+            }
+        }
+
+
+        /// <summary>
+        /// Whether current view is a 3D view
+        /// </summary>
+        public bool Is3DView
+        {
+            get
+            {
+                return m_is3DView;
+            }
+            set
+            {
+                m_is3DView = value;
+            }
+        }
+
+        /// <summary>
+        /// The format to be exported
+        /// </summary>
+        public ExportFormat ExportFormat
+        {
+            get 
+            { 
+                return m_exportFormat; 
+            }
+            set 
+            { 
+                m_exportFormat = value; 
+            }
+        }
+
+        /// <summary>
+        /// The filter which will be used in file saving dialog
+        /// </summary>
+        public String Filter
+        {
+            get 
+            { 
+                return m_filter; 
+            }
+        }
+
+        /// <summary>
+        /// The title of exporting dialog
+        /// </summary>
+        public String Title
+        {
+            get 
+            { 
+                return m_title; 
+            }
+        }
+        #endregion
+
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportData(ExternalCommandData commandData, ExportFormat exportFormat)
+        {
+            m_commandData = commandData;
+            m_activeDoc = commandData.Application.ActiveUIDocument.Document;
+            m_exportFormat = exportFormat;
+            m_filter = String.Empty;
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //The directory into which the file will be exported
+            String dllFilePath = Assembly.GetExecutingAssembly().Location;
+            m_exportFolder = Path.GetDirectoryName(dllFilePath);
+
+            //The file name to be used by export
+            m_activeDocName = m_activeDoc.Title;
+            m_activeViewName = m_activeDoc.ActiveView.Name;
+            String viewType = m_activeDoc.ActiveView.ViewType.ToString();
+            m_exportFileName = m_activeDocName + "-" + viewType + "-" + m_activeViewName + "." + getExtension().ToString();
+
+            //Whether current active view is 3D view
+            if (m_activeDoc.ActiveView.ViewType == Autodesk.Revit.DB.ViewType.ThreeD)
+            {
+                m_is3DView = true;
+            }
+            else
+            {
+                m_is3DView = false;
+            }
+        }
+
+        /// <summary>
+        /// Get the extension of the file to export
+        /// </summary>
+        /// <returns></returns>
+        private String getExtension()
+        {
+            String extension = null;
+            switch (m_exportFormat)
+            {
+                case ExportFormat.DWG:
+                    extension = "dwg";
+                    break;
+                case ExportFormat.DXF:
+                    extension = "dxf";
+                    break;
+                case ExportFormat.SAT:
+                    extension = "sat";
+                    break;
+                case ExportFormat.DWF:
+                    extension = "dwf";
+                    break;
+                case ExportFormat.DWFx:
+                    extension = "dwfx";
+                    break;
+                case ExportFormat.GBXML:
+                    extension = "xml";
+                    break;
+                case ExportFormat.FBX:
+                    extension = "fbx";
+                    break;
+                case ExportFormat.DGN:
+                    extension = "dgn";
+                    break;
+                case ExportFormat.Image:
+                    extension = "";
+                    break;
+                case ExportFormat.PDF:
+                    extension = "pdf";
+                    break;
+                default:
+                    break;
+            }
+
+            return extension;
+        }
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public virtual bool Export()
+        {
+            if (m_exportFolder == null || m_exportFileName == null)
+            {
+                throw new NullReferenceException();
+            }
+
+            return true;
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportDataWithViews.cs

@@ -0,0 +1,126 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Base data class which stores the common information for exporting view related format
+    /// </summary>
+    public class ExportDataWithViews : ExportData
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Data class SelectViewsData
+        /// </summary>
+        protected SelectViewsData m_selectViewsData;
+
+        /// <summary>
+        /// Views to export
+        /// </summary>
+        private ViewSet m_exportViews;
+
+        /// <summary>
+        /// Whether to export current view only
+        /// </summary>
+        protected bool m_currentViewOnly;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// Data class SelectViewsData
+        /// </summary>
+        public SelectViewsData SelectViewsData
+        {
+            get 
+            { 
+                return m_selectViewsData; 
+            }
+            set 
+            { 
+                m_selectViewsData = value; 
+            }
+        }
+
+        /// <summary>
+        /// Views to export
+        /// </summary>
+        public ViewSet ExportViews
+        {
+            get 
+            { 
+                return m_exportViews; 
+            }
+            set 
+            { 
+                m_exportViews = value; 
+            }
+        } 
+
+        /// <summary>
+        /// Whether to export current view only
+        /// </summary>
+        public bool CurrentViewOnly
+        {
+            get 
+            { 
+                return m_currentViewOnly; 
+            }
+            set 
+            { 
+                m_currentViewOnly = value; 
+            }
+        }
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportDataWithViews(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            m_selectViewsData = new SelectViewsData(commandData);
+
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //Views to export
+            m_exportViews = new ViewSet();
+        }
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportFBXData.cs

@@ -0,0 +1,69 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the information for exporting fbx format
+    /// </summary>
+    class ExportFBXData : ExportData
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportFBXData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            m_filter = "FBX Files |*.fbx";
+            m_title = "Export FBX";
+        }
+
+        /// <summary>
+        /// Export FBX format
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            base.Export();
+
+            bool exported = false;
+            //parameter : ViewSet views
+            ViewSet views = new ViewSet();
+            views.Insert(m_activeDoc.ActiveView);
+
+            FBXExportOptions options = new FBXExportOptions();
+            exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, views, options);
+
+            return exported;
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportGBXMLData.cs

@@ -0,0 +1,67 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores the information for exporting gbxml format
+    /// </summary>
+    class ExportGBXMLData : ExportData
+    {
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportGBXMLData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            m_filter = "XML Documents |*.xml";
+            m_title = "Export GBXML";
+        }
+
+        /// <summary>
+        /// Export GBXML format
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            Transaction transaction = new Transaction(m_activeDoc, "Export_To_GBXML");
+            transaction.Start();
+            base.Export();
+
+            GBXMLExportOptions options = new GBXMLExportOptions();
+            bool exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, options);
+            transaction.Commit();
+
+            return exported;
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportIMGData.cs

@@ -0,0 +1,96 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Collections.ObjectModel;
+using System.Windows.Forms;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    class ExportIMGData : ExportDataWithViews
+    {
+        #region Class Member Variables
+
+        /// <summary>
+        /// String list of image type
+        /// </summary>
+        private List<String> m_imageType;
+
+        #endregion
+
+        #region Class Member Methods
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData">Revit command data</param>
+        /// <param name="exportFormat">Format to export</param>
+        public ExportIMGData(ExternalCommandData commandData, ExportFormat exportFormat)
+            : base(commandData, exportFormat)
+        {
+            Initialize();
+        }
+
+        /// <summary>
+        /// Initialize the variables
+        /// </summary>
+        private void Initialize()
+        {
+            //Image type
+            m_imageType = new List<String>();
+            m_imageType.Add("(*.bmp)");
+            m_imageType.Add("(*.jpeg)");
+            m_imageType.Add("(*.png)");
+            m_imageType.Add("(*.tga)");
+            m_imageType.Add("(*.tif)");
+
+            StringBuilder tmp = new StringBuilder();
+            tmp.Append(m_imageType[0] + "|*.bmp|");
+            tmp.Append(m_imageType[1] + "|*.jpeg|");
+            tmp.Append(m_imageType[2] + "|*.png|");
+            tmp.Append(m_imageType[3] + "|*.tga|");
+            tmp.Append(m_imageType[4] + "|*.tif|");
+
+            m_filter = tmp.ToString().TrimEnd('|');
+            m_title = "Export IMG";
+        }
+
+
+        /// <summary>
+        /// Collect the parameters and export
+        /// </summary>
+        /// <returns></returns>
+        public override bool Export()
+        {
+            base.Export();
+            return true;
+        }
+
+        #endregion
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportIMGOptionsForm.Designer.cs

@@ -0,0 +1,470 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    partial class ExportIMGOptionsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.outputGroupBox = new System.Windows.Forms.GroupBox();
+            this.saveAs = new System.Windows.Forms.TextBox();
+            this.name = new System.Windows.Forms.Label();
+            this.changePath = new System.Windows.Forms.Button();
+            this.exportRangeGroupBox = new System.Windows.Forms.GroupBox();
+            this.selectRange = new System.Windows.Forms.Button();
+            this.viewsSheetsOption = new System.Windows.Forms.RadioButton();
+            this.visiblePortionOption = new System.Windows.Forms.RadioButton();
+            this.currentWindowOption = new System.Windows.Forms.RadioButton();
+            this.imageSizeGroupBox = new System.Windows.Forms.GroupBox();
+            this.pixels = new System.Windows.Forms.Label();
+            this.pixelValue = new System.Windows.Forms.TextBox();
+            this.panel1 = new System.Windows.Forms.Panel();
+            this.verticalOption = new System.Windows.Forms.RadioButton();
+            this.horizontalOption = new System.Windows.Forms.RadioButton();
+            this.actual = new System.Windows.Forms.Label();
+            this.zoomSize = new System.Windows.Forms.NumericUpDown();
+            this.Direction = new System.Windows.Forms.Label();
+            this.zoomOption = new System.Windows.Forms.RadioButton();
+            this.fitToOption = new System.Windows.Forms.RadioButton();
+            this.formatGroupBox = new System.Windows.Forms.GroupBox();
+            this.RIQCom = new System.Windows.Forms.ComboBox();
+            this.noShadedCom = new System.Windows.Forms.ComboBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.Non = new System.Windows.Forms.Label();
+            this.shadedCom = new System.Windows.Forms.ComboBox();
+            this.shaded = new System.Windows.Forms.Label();
+            this.okButton = new System.Windows.Forms.Button();
+            this.cannelButton = new System.Windows.Forms.Button();
+            this.outputGroupBox.SuspendLayout();
+            this.exportRangeGroupBox.SuspendLayout();
+            this.imageSizeGroupBox.SuspendLayout();
+            this.panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.zoomSize)).BeginInit();
+            this.formatGroupBox.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // outputGroupBox
+            // 
+            this.outputGroupBox.Controls.Add(this.saveAs);
+            this.outputGroupBox.Controls.Add(this.name);
+            this.outputGroupBox.Controls.Add(this.changePath);
+            this.outputGroupBox.Location = new System.Drawing.Point(12, 12);
+            this.outputGroupBox.Name = "outputGroupBox";
+            this.outputGroupBox.Size = new System.Drawing.Size(489, 58);
+            this.outputGroupBox.TabIndex = 0;
+            this.outputGroupBox.TabStop = false;
+            this.outputGroupBox.Text = "Output";
+            // 
+            // saveAs
+            // 
+            this.saveAs.Location = new System.Drawing.Point(55, 20);
+            this.saveAs.Name = "saveAs";
+            this.saveAs.Size = new System.Drawing.Size(385, 21);
+            this.saveAs.TabIndex = 1;
+            // 
+            // name
+            // 
+            this.name.AutoSize = true;
+            this.name.Location = new System.Drawing.Point(13, 24);
+            this.name.Name = "name";
+            this.name.Size = new System.Drawing.Size(38, 13);
+            this.name.TabIndex = 1;
+            this.name.Text = "Name:";
+            // 
+            // changePath
+            // 
+            this.changePath.Location = new System.Drawing.Point(443, 19);
+            this.changePath.Name = "changePath";
+            this.changePath.Size = new System.Drawing.Size(27, 23);
+            this.changePath.TabIndex = 1;
+            this.changePath.Text = "...";
+            this.changePath.UseVisualStyleBackColor = true;
+            this.changePath.Click += new System.EventHandler(this.Change_Click);
+            // 
+            // exportRangeGroupBox
+            // 
+            this.exportRangeGroupBox.Controls.Add(this.selectRange);
+            this.exportRangeGroupBox.Controls.Add(this.viewsSheetsOption);
+            this.exportRangeGroupBox.Controls.Add(this.visiblePortionOption);
+            this.exportRangeGroupBox.Controls.Add(this.currentWindowOption);
+            this.exportRangeGroupBox.Location = new System.Drawing.Point(12, 76);
+            this.exportRangeGroupBox.Name = "exportRangeGroupBox";
+            this.exportRangeGroupBox.Size = new System.Drawing.Size(489, 46);
+            this.exportRangeGroupBox.TabIndex = 1;
+            this.exportRangeGroupBox.TabStop = false;
+            this.exportRangeGroupBox.Text = "Export Range";
+            // 
+            // selectRange
+            // 
+            this.selectRange.Location = new System.Drawing.Point(443, 16);
+            this.selectRange.Name = "selectRange";
+            this.selectRange.Size = new System.Drawing.Size(27, 23);
+            this.selectRange.TabIndex = 9;
+            this.selectRange.Text = "...";
+            this.selectRange.UseVisualStyleBackColor = true;
+            this.selectRange.Click += new System.EventHandler(this.Select_Click);
+            // 
+            // viewsSheetsOption
+            // 
+            this.viewsSheetsOption.AutoSize = true;
+            this.viewsSheetsOption.Location = new System.Drawing.Point(307, 19);
+            this.viewsSheetsOption.Name = "viewsSheetsOption";
+            this.viewsSheetsOption.Size = new System.Drawing.Size(132, 17);
+            this.viewsSheetsOption.TabIndex = 8;
+            this.viewsSheetsOption.TabStop = true;
+            this.viewsSheetsOption.Text = "Selected views/sheets";
+            this.viewsSheetsOption.UseVisualStyleBackColor = true;
+            this.viewsSheetsOption.CheckedChanged += new System.EventHandler(this.ViewsSheets_CheckedChanged);
+            // 
+            // visiblePortionOption
+            // 
+            this.visiblePortionOption.AutoSize = true;
+            this.visiblePortionOption.Location = new System.Drawing.Point(124, 19);
+            this.visiblePortionOption.Name = "visiblePortionOption";
+            this.visiblePortionOption.Size = new System.Drawing.Size(181, 17);
+            this.visiblePortionOption.TabIndex = 7;
+            this.visiblePortionOption.TabStop = true;
+            this.visiblePortionOption.Text = "Visible portion of current window";
+            this.visiblePortionOption.UseVisualStyleBackColor = true;
+            this.visiblePortionOption.CheckedChanged += new System.EventHandler(this.VisiblePortion_CheckedChanged);
+            // 
+            // currentWindowOption
+            // 
+            this.currentWindowOption.AutoSize = true;
+            this.currentWindowOption.Location = new System.Drawing.Point(20, 19);
+            this.currentWindowOption.Name = "currentWindowOption";
+            this.currentWindowOption.Size = new System.Drawing.Size(101, 17);
+            this.currentWindowOption.TabIndex = 6;
+            this.currentWindowOption.TabStop = true;
+            this.currentWindowOption.Text = "Current window";
+            this.currentWindowOption.UseVisualStyleBackColor = true;
+            this.currentWindowOption.CheckedChanged += new System.EventHandler(this.CurrentWindow_CheckedChanged);
+            // 
+            // imageSizeGroupBox
+            // 
+            this.imageSizeGroupBox.Controls.Add(this.pixels);
+            this.imageSizeGroupBox.Controls.Add(this.pixelValue);
+            this.imageSizeGroupBox.Controls.Add(this.panel1);
+            this.imageSizeGroupBox.Controls.Add(this.actual);
+            this.imageSizeGroupBox.Controls.Add(this.zoomSize);
+            this.imageSizeGroupBox.Controls.Add(this.Direction);
+            this.imageSizeGroupBox.Controls.Add(this.zoomOption);
+            this.imageSizeGroupBox.Controls.Add(this.fitToOption);
+            this.imageSizeGroupBox.Location = new System.Drawing.Point(12, 128);
+            this.imageSizeGroupBox.Name = "imageSizeGroupBox";
+            this.imageSizeGroupBox.Size = new System.Drawing.Size(489, 77);
+            this.imageSizeGroupBox.TabIndex = 2;
+            this.imageSizeGroupBox.TabStop = false;
+            this.imageSizeGroupBox.Text = "Image size";
+            // 
+            // pixels
+            // 
+            this.pixels.AutoSize = true;
+            this.pixels.Location = new System.Drawing.Point(169, 20);
+            this.pixels.Name = "pixels";
+            this.pixels.Size = new System.Drawing.Size(34, 13);
+            this.pixels.TabIndex = 2;
+            this.pixels.Text = "pixels";
+            // 
+            // pixelValue
+            // 
+            this.pixelValue.Location = new System.Drawing.Point(84, 16);
+            this.pixelValue.Name = "pixelValue";
+            this.pixelValue.Size = new System.Drawing.Size(78, 21);
+            this.pixelValue.TabIndex = 8;
+            // 
+            // panel1
+            // 
+            this.panel1.Controls.Add(this.verticalOption);
+            this.panel1.Controls.Add(this.horizontalOption);
+            this.panel1.Location = new System.Drawing.Point(306, 16);
+            this.panel1.Name = "panel1";
+            this.panel1.Size = new System.Drawing.Size(162, 21);
+            this.panel1.TabIndex = 7;
+            // 
+            // verticalOption
+            // 
+            this.verticalOption.AutoSize = true;
+            this.verticalOption.Location = new System.Drawing.Point(3, 3);
+            this.verticalOption.Name = "verticalOption";
+            this.verticalOption.Size = new System.Drawing.Size(60, 17);
+            this.verticalOption.TabIndex = 0;
+            this.verticalOption.TabStop = true;
+            this.verticalOption.Text = "Vertical";
+            this.verticalOption.UseVisualStyleBackColor = true;
+            this.verticalOption.CheckedChanged += new System.EventHandler(this.Vertical_CheckedChanged);
+            // 
+            // horizontalOption
+            // 
+            this.horizontalOption.AutoSize = true;
+            this.horizontalOption.Location = new System.Drawing.Point(87, 3);
+            this.horizontalOption.Name = "horizontalOption";
+            this.horizontalOption.Size = new System.Drawing.Size(73, 17);
+            this.horizontalOption.TabIndex = 1;
+            this.horizontalOption.TabStop = true;
+            this.horizontalOption.Text = "Horizontal";
+            this.horizontalOption.UseVisualStyleBackColor = true;
+            this.horizontalOption.CheckedChanged += new System.EventHandler(this.Horizontal_CheckedChanged);
+            // 
+            // actual
+            // 
+            this.actual.AutoSize = true;
+            this.actual.Location = new System.Drawing.Point(169, 48);
+            this.actual.Name = "actual";
+            this.actual.Size = new System.Drawing.Size(84, 13);
+            this.actual.TabIndex = 6;
+            this.actual.Text = "% of actual size";
+            // 
+            // zoomSize
+            // 
+            this.zoomSize.Location = new System.Drawing.Point(84, 44);
+            this.zoomSize.Maximum = new decimal(new int[] {
+            32767,
+            0,
+            0,
+            0});
+            this.zoomSize.Minimum = new decimal(new int[] {
+            1,
+            0,
+            0,
+            0});
+            this.zoomSize.Name = "zoomSize";
+            this.zoomSize.Size = new System.Drawing.Size(78, 21);
+            this.zoomSize.TabIndex = 5;
+            this.zoomSize.Value = new decimal(new int[] {
+            1,
+            0,
+            0,
+            0});
+            // 
+            // Direction
+            // 
+            this.Direction.AutoSize = true;
+            this.Direction.Location = new System.Drawing.Point(240, 20);
+            this.Direction.Name = "Direction";
+            this.Direction.Size = new System.Drawing.Size(53, 13);
+            this.Direction.TabIndex = 2;
+            this.Direction.Text = "Direction:";
+            // 
+            // zoomOption
+            // 
+            this.zoomOption.AutoSize = true;
+            this.zoomOption.Location = new System.Drawing.Point(20, 46);
+            this.zoomOption.Name = "zoomOption";
+            this.zoomOption.Size = new System.Drawing.Size(64, 17);
+            this.zoomOption.TabIndex = 1;
+            this.zoomOption.TabStop = true;
+            this.zoomOption.Text = "Zoom to";
+            this.zoomOption.UseVisualStyleBackColor = true;
+            this.zoomOption.CheckedChanged += new System.EventHandler(this.Zoom_CheckedChanged);
+            // 
+            // fitToOption
+            // 
+            this.fitToOption.AutoSize = true;
+            this.fitToOption.Location = new System.Drawing.Point(20, 18);
+            this.fitToOption.Name = "fitToOption";
+            this.fitToOption.Size = new System.Drawing.Size(50, 17);
+            this.fitToOption.TabIndex = 0;
+            this.fitToOption.TabStop = true;
+            this.fitToOption.Text = "Fit to";
+            this.fitToOption.UseVisualStyleBackColor = true;
+            this.fitToOption.CheckedChanged += new System.EventHandler(this.FitTo_CheckedChanged);
+            // 
+            // formatGroupBox
+            // 
+            this.formatGroupBox.Controls.Add(this.RIQCom);
+            this.formatGroupBox.Controls.Add(this.noShadedCom);
+            this.formatGroupBox.Controls.Add(this.label1);
+            this.formatGroupBox.Controls.Add(this.Non);
+            this.formatGroupBox.Controls.Add(this.shadedCom);
+            this.formatGroupBox.Controls.Add(this.shaded);
+            this.formatGroupBox.Location = new System.Drawing.Point(12, 211);
+            this.formatGroupBox.Name = "formatGroupBox";
+            this.formatGroupBox.Size = new System.Drawing.Size(489, 70);
+            this.formatGroupBox.TabIndex = 4;
+            this.formatGroupBox.TabStop = false;
+            this.formatGroupBox.Text = "Format";
+            // 
+            // RIQCom
+            // 
+            this.RIQCom.FormattingEnabled = true;
+            this.RIQCom.Location = new System.Drawing.Point(347, 32);
+            this.RIQCom.Name = "RIQCom";
+            this.RIQCom.Size = new System.Drawing.Size(121, 21);
+            this.RIQCom.TabIndex = 10;
+            // 
+            // noShadedCom
+            // 
+            this.noShadedCom.FormattingEnabled = true;
+            this.noShadedCom.Location = new System.Drawing.Point(180, 32);
+            this.noShadedCom.Name = "noShadedCom";
+            this.noShadedCom.Size = new System.Drawing.Size(121, 21);
+            this.noShadedCom.TabIndex = 9;
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(347, 16);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(109, 13);
+            this.label1.TabIndex = 8;
+            this.label1.Text = "Raster Image Quality";
+            // 
+            // Non
+            // 
+            this.Non.AutoSize = true;
+            this.Non.Location = new System.Drawing.Point(180, 16);
+            this.Non.Name = "Non";
+            this.Non.Size = new System.Drawing.Size(98, 13);
+            this.Non.TabIndex = 7;
+            this.Non.Text = "Non shaded views:";
+            // 
+            // shadedCom
+            // 
+            this.shadedCom.FormattingEnabled = true;
+            this.shadedCom.Location = new System.Drawing.Point(13, 32);
+            this.shadedCom.Name = "shadedCom";
+            this.shadedCom.Size = new System.Drawing.Size(121, 21);
+            this.shadedCom.TabIndex = 6;
+            // 
+            // shaded
+            // 
+            this.shaded.AutoSize = true;
+            this.shaded.Location = new System.Drawing.Point(13, 16);
+            this.shaded.Name = "shaded";
+            this.shaded.Size = new System.Drawing.Size(77, 13);
+            this.shaded.TabIndex = 5;
+            this.shaded.Text = "Shaded views:";
+            // 
+            // okButton
+            // 
+            this.okButton.DialogResult = System.Windows.Forms.DialogResult.OK;
+            this.okButton.Location = new System.Drawing.Point(336, 307);
+            this.okButton.Name = "okButton";
+            this.okButton.Size = new System.Drawing.Size(75, 23);
+            this.okButton.TabIndex = 0;
+            this.okButton.Text = "OK";
+            this.okButton.UseVisualStyleBackColor = true;
+            this.okButton.Click += new System.EventHandler(this.OK_Click);
+            // 
+            // cannelButton
+            // 
+            this.cannelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.cannelButton.Location = new System.Drawing.Point(426, 307);
+            this.cannelButton.Name = "cannelButton";
+            this.cannelButton.Size = new System.Drawing.Size(75, 23);
+            this.cannelButton.TabIndex = 5;
+            this.cannelButton.Text = "Cannel";
+            this.cannelButton.UseVisualStyleBackColor = true;
+            this.cannelButton.Click += new System.EventHandler(this.Cannel_Click);
+            // 
+            // ExportIMGOptionsForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(516, 341);
+            this.Controls.Add(this.outputGroupBox);
+            this.Controls.Add(this.cannelButton);
+            this.Controls.Add(this.okButton);
+            this.Controls.Add(this.formatGroupBox);
+            this.Controls.Add(this.imageSizeGroupBox);
+            this.Controls.Add(this.exportRangeGroupBox);
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "ExportIMGOptionsForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.Text = "Export Image";
+            this.outputGroupBox.ResumeLayout(false);
+            this.outputGroupBox.PerformLayout();
+            this.exportRangeGroupBox.ResumeLayout(false);
+            this.exportRangeGroupBox.PerformLayout();
+            this.imageSizeGroupBox.ResumeLayout(false);
+            this.imageSizeGroupBox.PerformLayout();
+            this.panel1.ResumeLayout(false);
+            this.panel1.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.zoomSize)).EndInit();
+            this.formatGroupBox.ResumeLayout(false);
+            this.formatGroupBox.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.GroupBox outputGroupBox;
+        private System.Windows.Forms.Button changePath;
+        private System.Windows.Forms.TextBox saveAs;
+        private System.Windows.Forms.Label name;
+        private System.Windows.Forms.GroupBox exportRangeGroupBox;
+        private System.Windows.Forms.GroupBox imageSizeGroupBox;
+        private System.Windows.Forms.GroupBox formatGroupBox;
+        private System.Windows.Forms.Button okButton;
+        private System.Windows.Forms.Button cannelButton;
+        private System.Windows.Forms.RadioButton viewsSheetsOption;
+        private System.Windows.Forms.RadioButton visiblePortionOption;
+        private System.Windows.Forms.RadioButton currentWindowOption;
+        private System.Windows.Forms.Button selectRange;
+        private System.Windows.Forms.RadioButton fitToOption;
+        private System.Windows.Forms.RadioButton horizontalOption;
+        private System.Windows.Forms.RadioButton verticalOption;
+        private System.Windows.Forms.Label Direction;
+        private System.Windows.Forms.RadioButton zoomOption;
+        private System.Windows.Forms.NumericUpDown zoomSize;
+        private System.Windows.Forms.Label actual;
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.Label Non;
+        private System.Windows.Forms.ComboBox shadedCom;
+        private System.Windows.Forms.Label shaded;
+        private System.Windows.Forms.ComboBox noShadedCom;
+        private System.Windows.Forms.ComboBox RIQCom;
+        private System.Windows.Forms.Panel panel1;
+        private System.Windows.Forms.TextBox pixelValue;
+        private System.Windows.Forms.Label pixels;
+
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportIMGOptionsForm.cs

@@ -0,0 +1,249 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Windows.Forms;
+
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which provides the options of lower priority information for exporting image
+    /// </summary>
+    public partial class ExportIMGOptionsForm : System.Windows.Forms.Form
+    {
+
+        /// <summary>
+        /// Data class object of m_exportOptions
+        /// </summary>
+        private ImageExportOptions m_exportOptions;
+
+
+        /// <summary>
+        /// Data class object of ExportDataWithViews
+        /// </summary>
+        private ExportDataWithViews m_exportData;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="exportData">Data class object</param>
+        public ExportIMGOptionsForm(ExportDataWithViews exportData)
+        {
+            m_exportOptions = new ImageExportOptions();
+            InitializeComponent();
+            this.m_exportData = exportData;
+            InitializeFormats();
+        }
+
+        private void InitializeFormats()
+        {
+            // Initialize
+            currentWindowOption.Checked = true;
+            selectRange.Enabled = false;
+            fitToOption.Checked = true;
+            zoomOption.Checked = false;
+            verticalOption.Enabled = false;
+            horizontalOption.Enabled = true;
+            RIQCom.Enabled = false;
+            pixelValue.Text = "512";
+            zoomSize.Enabled = false;
+            zoomSize.Value = 50;
+            saveAs.Text = m_exportData.ExportFolder + "\\" + m_exportData.ActiveViewName;
+
+
+            shadedCom.Items.Add("BMP");
+            shadedCom.Items.Add("JPEG(lossless)");
+            shadedCom.Items.Add("JPEG(medium)");
+            shadedCom.Items.Add("JPEG(smallest)");
+            shadedCom.Items.Add("PNG");
+            shadedCom.Items.Add("TARGA");
+            shadedCom.Items.Add("TIFF");
+            shadedCom.SelectedIndex = 2;
+
+            noShadedCom.Items.Add("BMP");
+            noShadedCom.Items.Add("JPEG(lossless)");
+            noShadedCom.Items.Add("JPEG(medium)");
+            noShadedCom.Items.Add("JPEG(smallest");
+            noShadedCom.Items.Add("PNG");
+            noShadedCom.Items.Add("TARGA");
+            noShadedCom.Items.Add("TIFF");
+            noShadedCom.SelectedIndex = 2;
+
+
+            RIQCom.Items.Add("72");
+            RIQCom.Items.Add("150");
+            RIQCom.Items.Add("300");
+            RIQCom.Items.Add("600");
+            RIQCom.SelectedIndex = 0;
+            RIQCom.Enabled = false;
+        }
+
+        private void FitTo_CheckedChanged(object sender, EventArgs e)
+        {
+            verticalOption.Enabled = true;
+            horizontalOption.Enabled = true;
+            RIQCom.Enabled = false;
+            zoomSize.Enabled = false;
+            m_exportOptions.ZoomType = ZoomFitType.FitToPage;
+            pixelValue.Enabled = true;
+        }
+
+        private void Zoom_CheckedChanged(object sender, EventArgs e)
+        {
+            verticalOption.Checked = false;
+            horizontalOption.Checked = false;
+            verticalOption.Enabled = false;
+            horizontalOption.Enabled = false;
+            RIQCom.Enabled = true;
+            zoomSize.Enabled = true;
+            m_exportOptions.ZoomType = ZoomFitType.Zoom;
+            pixelValue.Enabled = false;
+        }
+
+        private void Cannel_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+
+        private void Select_Click(object sender, EventArgs e)
+        {
+            using (SelectViewsForm selectViewsForm = new SelectViewsForm(m_exportData.SelectViewsData))
+            {
+                m_exportData.SelectViewsData.SelectedViews.Clear();
+                selectViewsForm.ShowDialog();
+            }
+        }
+
+        private void CurrentWindow_CheckedChanged(object sender, EventArgs e)
+        {
+            m_exportOptions.ExportRange = ExportRange.CurrentView;
+            selectRange.Enabled = false;
+        }
+
+        private void VisiblePortion_CheckedChanged(object sender, EventArgs e)
+        {
+            m_exportOptions.ExportRange = ExportRange.VisibleRegionOfCurrentView;
+            selectRange.Enabled = false;
+        }
+
+        private void ViewsSheets_CheckedChanged(object sender, EventArgs e)
+        {
+            m_exportOptions.ExportRange = ExportRange.SetOfViews;
+            selectRange.Enabled = true;
+        }
+
+        private void Change_Click(object sender, EventArgs e)
+        {
+            String fileName = String.Empty;
+            int filterIndex = -1;
+            DialogResult result = ShowSaveDialog(m_exportData, ref fileName, ref filterIndex);
+            if (result != DialogResult.Cancel)
+            {
+                saveAs.Text = fileName.Substring(0, fileName.LastIndexOf("."));
+
+            }
+        }
+
+        private DialogResult ShowSaveDialog(ExportData exportData, ref String returnFileName, ref int filterIndex)
+        {
+            using (SaveFileDialog saveDialog = new SaveFileDialog())
+            {
+                saveDialog.Title = exportData.Title;
+                saveDialog.InitialDirectory = exportData.ExportFolder;
+                saveDialog.FileName = exportData.ActiveViewName;
+                saveDialog.Filter = exportData.Filter;
+                saveDialog.FilterIndex = 1;
+                saveDialog.RestoreDirectory = true;
+
+                DialogResult result = saveDialog.ShowDialog();
+                if (result != DialogResult.Cancel)
+                {
+                    returnFileName = saveDialog.FileName;
+                    filterIndex = saveDialog.FilterIndex;
+                }
+
+                return result;
+            }
+        }
+
+        private void OK_Click(object sender, EventArgs e)
+        {
+            m_exportOptions.FilePath = saveAs.Text;
+            if (m_exportOptions.ZoomType == ZoomFitType.FitToPage)
+            {
+                m_exportOptions.PixelSize = int.Parse(pixelValue.Text);
+            }
+            else if (m_exportOptions.ZoomType == ZoomFitType.Zoom)
+            {
+                m_exportOptions.Zoom = (int)zoomSize.Value;
+                m_exportOptions.ImageResolution = (ImageResolution)RIQCom.SelectedIndex;
+            }
+
+            m_exportOptions.ShadowViewsFileType = (ImageFileType)shadedCom.SelectedIndex;
+            m_exportOptions.HLRandWFViewsFileType = (ImageFileType)noShadedCom.SelectedIndex;
+
+
+            if (m_exportOptions.ExportRange == ExportRange.SetOfViews)
+            {
+                ViewSet views = m_exportData.SelectViewsData.SelectedViews;
+                List<ElementId> viewIds = new List<ElementId>();
+                foreach (Autodesk.Revit.DB.View view in views)
+                {
+                    viewIds.Add(view.Id);
+                }
+                m_exportOptions.SetViewsAndSheets(viewIds);
+            }
+
+            try
+            {
+                m_exportData.ActiveDocument.ExportImage(m_exportOptions);
+            }
+            catch (Exception ex)
+            {
+                String errorMessage = "Failed to export img" + ex.ToString();
+                TaskDialog.Show("Error", errorMessage, TaskDialogCommonButtons.Ok);
+            }
+            this.Close();
+        }
+
+        private void Vertical_CheckedChanged(object sender, EventArgs e)
+        {
+            m_exportOptions.FitDirection = FitDirectionType.Vertical;
+        }
+
+        private void Horizontal_CheckedChanged(object sender, EventArgs e)
+        {
+            m_exportOptions.FitDirection = FitDirectionType.Horizontal;
+        }
+
+
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportIMGOptionsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/ExportPDFData.cs

@@ -0,0 +1,102 @@
+//
+// (C) Copyright 2003-2020 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+   /// <summary>
+   /// Data class which stores the main information for exporting pdf format
+   /// </summary>
+   public class ExportPDFData : ExportDataWithViews
+   {
+      #region Class Member Variables
+      private bool m_combine;
+      #endregion
+
+      #region Class Properties
+      public bool Combine
+      {
+         get
+         {
+            return m_combine;
+         }
+         set
+         {
+            m_combine = value;
+         }
+      }
+
+      #endregion
+
+      /// <summary>
+      /// Constructor
+      /// </summary>
+      /// <param name="commandData">Revit command data</param>
+      /// <param name="exportFormat">Format to export</param>
+      public ExportPDFData(ExternalCommandData commandData, ExportFormat exportFormat)
+          : base(commandData, exportFormat)
+      {
+         m_filter = "PDF Files |*.pdf";
+         m_title = "Export PDF";
+
+         m_combine = true;
+      }
+
+      /// <summary>
+      /// Export PDF format
+      /// </summary>
+      /// <returns></returns>
+      public override bool Export()
+      {
+         base.Export();
+
+         bool exported = false;
+         // Parameter: The list of view/sheet id to export
+         IList<ElementId> views = new List<ElementId>();
+         if (m_currentViewOnly)
+         {
+            views.Add(m_activeDoc.ActiveView.Id);
+         }
+         else
+         {
+            ViewSet viewSet = m_selectViewsData.SelectedViews;
+            foreach (View v in viewSet)
+            {
+               views.Add(v.Id);
+            }
+         }
+
+         // Parameter: The exporting options, including paper size, orientation, file name or naming rule and etc.
+         PDFExportOptions options = new PDFExportOptions();
+         options.FileName = m_exportFileName;
+         options.Combine = m_combine;  // If not combined, PDFs will be exported with default naming rule "Type-ViewName"
+         exported = m_activeDoc.Export(m_exportFolder, views, options);
+
+         return exported;
+      }
+   }
+}

SDK/Samples/ImportExport/CS/Export/ExportPDFOptionsForm.Designer.cs

@@ -0,0 +1,99 @@
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+   partial class ExportPDFOptionsForm
+   {
+      /// <summary>
+      /// Required designer variable.
+      /// </summary>
+      private System.ComponentModel.IContainer components = null;
+
+      /// <summary>
+      /// Clean up any resources being used.
+      /// </summary>
+      /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+      protected override void Dispose(bool disposing)
+      {
+         if (disposing && (components != null))
+         {
+            components.Dispose();
+         }
+         base.Dispose(disposing);
+      }
+
+      #region Windows Form Designer generated code
+
+      /// <summary>
+      /// Required method for Designer support - do not modify
+      /// the contents of this method with the code editor.
+      /// </summary>
+      private void InitializeComponent()
+      {
+         this.buttonOK = new System.Windows.Forms.Button();
+         this.buttonCancel = new System.Windows.Forms.Button();
+         this.checkBoxCombineViews = new System.Windows.Forms.CheckBox();
+         this.SuspendLayout();
+         // 
+         // buttonOK
+         // 
+         this.buttonOK.DialogResult = System.Windows.Forms.DialogResult.OK;
+         this.buttonOK.Location = new System.Drawing.Point(120, 113);
+         this.buttonOK.Margin = new System.Windows.Forms.Padding(4);
+         this.buttonOK.Name = "buttonOK";
+         this.buttonOK.Size = new System.Drawing.Size(121, 28);
+         this.buttonOK.TabIndex = 1;
+         this.buttonOK.Text = "&OK";
+         this.buttonOK.UseVisualStyleBackColor = true;
+         this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+         // 
+         // buttonCancel
+         // 
+         this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+         this.buttonCancel.Location = new System.Drawing.Point(253, 113);
+         this.buttonCancel.Margin = new System.Windows.Forms.Padding(4);
+         this.buttonCancel.Name = "buttonCancel";
+         this.buttonCancel.Size = new System.Drawing.Size(135, 28);
+         this.buttonCancel.TabIndex = 3;
+         this.buttonCancel.Text = "&Cancel";
+         this.buttonCancel.UseVisualStyleBackColor = true;
+         // 
+         // checkBoxCombineViews
+         // 
+         this.checkBoxCombineViews.AutoSize = true;
+         this.checkBoxCombineViews.Location = new System.Drawing.Point(13, 34);
+         this.checkBoxCombineViews.Margin = new System.Windows.Forms.Padding(4);
+         this.checkBoxCombineViews.Name = "checkBoxCombineViews";
+         this.checkBoxCombineViews.Size = new System.Drawing.Size(375, 21);
+         this.checkBoxCombineViews.TabIndex = 5;
+         this.checkBoxCombineViews.Text = "Combine selected views and sheets into single PDF file";
+         this.checkBoxCombineViews.UseVisualStyleBackColor = true;
+         // 
+         // ExportPDFOptionsForm
+         // 
+         this.AcceptButton = this.buttonOK;
+         this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
+         this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+         this.CancelButton = this.buttonCancel;
+         this.ClientSize = new System.Drawing.Size(411, 163);
+         this.Controls.Add(this.checkBoxCombineViews);
+         this.Controls.Add(this.buttonCancel);
+         this.Controls.Add(this.buttonOK);
+         this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+         this.MaximizeBox = false;
+         this.MinimizeBox = false;
+         this.Name = "ExportPDFOptionsForm";
+         this.ShowIcon = false;
+         this.ShowInTaskbar = false;
+         this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+         this.Text = "ExportPDFOptionsForm";
+         this.ResumeLayout(false);
+         this.PerformLayout();
+
+      }
+
+      #endregion
+
+      private System.Windows.Forms.Button buttonOK;
+      private System.Windows.Forms.Button buttonCancel;
+      private System.Windows.Forms.CheckBox checkBoxCombineViews;
+   }
+}

SDK/Samples/ImportExport/CS/Export/ExportPDFOptionsForm.cs

@@ -0,0 +1,65 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+   /// <summary>
+   /// Data class which stores information of lower priority for exporting PDF format.
+   /// </summary>
+   public partial class ExportPDFOptionsForm : Form
+   {
+      /// <summary>
+      /// ExportPDFData object
+      /// </summary>
+      private ExportPDFData m_data;
+
+      public ExportPDFOptionsForm(ExportPDFData data)
+      {
+         m_data = data;
+         InitializeComponent();
+         Initialize();
+      }
+
+      /// <summary>
+      /// Initialize controls
+      /// </summary>
+      private void Initialize()
+      {
+         checkBoxCombineViews.Checked = m_data.Combine;
+      }
+
+      private void buttonOK_Click(object sender, EventArgs e)
+      {
+         m_data.Combine = checkBoxCombineViews.Checked;
+      }
+   }
+}

SDK/Samples/ImportExport/CS/Export/ExportPDFOptionsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/ExportSATData.cs

@@ -0,0 +1,170 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Text;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+   /// <summary>
+   /// Data class which stores the main information for exporting dxf format
+   /// </summary>
+   public class ExportSATData : ExportDataWithViews
+   {
+      #region Class Member Variables
+      /// <summary>
+      /// String list of AutoCAD versions
+      /// </summary>
+      private List<String> m_fileVersion;
+
+      /// <summary>
+      /// List of Autodesk.Revit.DB.ACADVersion defined in Revit
+      /// </summary>
+      private List<Autodesk.Revit.DB.ACADVersion> m_enumFileVersion;
+
+      /// <summary>
+      /// File version option to export
+      /// </summary>
+      private Autodesk.Revit.DB.ACADVersion m_exportFileVersion;
+      #endregion
+
+      #region Class Properties
+
+      /// <summary>
+      /// String collection of AutoCAD versions
+      /// </summary>
+      public ReadOnlyCollection<String> FileVersion
+      {
+         get
+         {
+            return new ReadOnlyCollection<String>(m_fileVersion);
+         }
+      }
+
+      /// <summary>
+      /// Collection of Autodesk.Revit.DB.ACADVersion defined in Revit
+      /// </summary>
+      public ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion> EnumFileVersion
+      {
+         get
+         {
+            return new ReadOnlyCollection<Autodesk.Revit.DB.ACADVersion>(m_enumFileVersion);
+         }
+      }
+
+      /// <summary>
+      /// File version option to export
+      /// </summary>
+      public Autodesk.Revit.DB.ACADVersion ExportFileVersion
+      {
+         get
+         {
+            return m_exportFileVersion;
+         }
+         set
+         {
+            m_exportFileVersion = value;
+         }
+      }
+      #endregion
+
+      #region Class Member Methods
+      /// <summary>
+      /// Constructor
+      /// </summary>
+      /// <param name="commandData">Revit command data</param>
+      /// <param name="exportFormat">Format to export</param>
+      public ExportSATData(ExternalCommandData commandData, ExportFormat exportFormat)
+         : base(commandData, exportFormat)
+      {
+         Initialize();
+      }
+
+      /// <summary>
+      /// Initialize the variables
+      /// </summary>
+      private void Initialize()
+      {
+         //AutoCAD versions
+         m_fileVersion = new List<String>();
+         m_enumFileVersion = new List<Autodesk.Revit.DB.ACADVersion>();
+         m_fileVersion.Add("AutoCAD 2013 DXF Files (*.sat)");
+         m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2013);
+         m_fileVersion.Add("AutoCAD 2010 DXF Files (*.sat)");
+         m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2010);
+         m_fileVersion.Add("AutoCAD 2007 DXF Files (*.sat)");
+         m_enumFileVersion.Add(Autodesk.Revit.DB.ACADVersion.R2007);
+
+         StringBuilder tmp = new StringBuilder();
+         foreach (String version in m_fileVersion)
+         {
+            tmp.Append(version + "|*.sat|");
+         }
+         m_filter = tmp.ToString().TrimEnd('|');
+         m_title = "Export SAT";
+      }
+
+      /// <summary>
+      /// Collect the parameters and export
+      /// </summary>
+      /// <returns></returns>
+      public override bool Export()
+      {
+         base.Export();
+
+         bool exported = false;
+         
+         //parameter : ViewSet views
+         ViewSet views = new ViewSet();
+         if (m_currentViewOnly)
+         {
+            views.Insert(m_activeDoc.ActiveView);
+         }
+         else
+         {
+            views = m_selectViewsData.SelectedViews;
+         }
+
+         ICollection<ElementId> viewIds = new List<ElementId>();
+         foreach (View view in views)
+         {
+            viewIds.Add(view.Id);
+         }
+
+         //parameter : DXFExportOptions dxfExportOptions
+         SATExportOptions satExportOptions = new SATExportOptions();
+
+         //Export
+         exported = m_activeDoc.Export(m_exportFolder, m_exportFileName, viewIds, satExportOptions);
+         
+         return exported;
+      }
+      #endregion
+   }
+}

SDK/Samples/ImportExport/CS/Export/ExportWithViewsForm.Designer.cs

@@ -0,0 +1,213 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// It contains a dialog which provides the options of common information for export
+    /// </summary>
+    partial class ExportWithViewsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.textBoxSaveAs = new System.Windows.Forms.TextBox();
+            this.labelSaveAs = new System.Windows.Forms.Label();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.buttonOptions = new System.Windows.Forms.Button();
+            this.buttonBrowser = new System.Windows.Forms.Button();
+            this.groupBoxRange = new System.Windows.Forms.GroupBox();
+            this.buttonSelectViews = new System.Windows.Forms.Button();
+            this.radioButtonSelectView = new System.Windows.Forms.RadioButton();
+            this.radioButtonCurrentView = new System.Windows.Forms.RadioButton();
+            this.groupBoxRange.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // textBoxSaveAs
+            // 
+            this.textBoxSaveAs.Location = new System.Drawing.Point(67, 19);
+            this.textBoxSaveAs.Name = "textBoxSaveAs";
+            this.textBoxSaveAs.Size = new System.Drawing.Size(308, 21);
+            this.textBoxSaveAs.TabIndex = 1;
+            // 
+            // labelSaveAs
+            // 
+            this.labelSaveAs.AutoSize = true;
+            this.labelSaveAs.Location = new System.Drawing.Point(14, 23);
+            this.labelSaveAs.Name = "labelSaveAs";
+            this.labelSaveAs.Size = new System.Drawing.Size(50, 13);
+            this.labelSaveAs.TabIndex = 1;
+            this.labelSaveAs.Text = "Save As:";
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(235, 141);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(75, 21);
+            this.buttonSave.TabIndex = 0;
+            this.buttonSave.Text = "&Save";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            this.buttonSave.Click += new System.EventHandler(this.buttonSave_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.Location = new System.Drawing.Point(320, 141);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 21);
+            this.buttonCancel.TabIndex = 6;
+            this.buttonCancel.Text = "&Cancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // buttonOptions
+            // 
+            this.buttonOptions.Location = new System.Drawing.Point(150, 141);
+            this.buttonOptions.Name = "buttonOptions";
+            this.buttonOptions.Size = new System.Drawing.Size(75, 21);
+            this.buttonOptions.TabIndex = 5;
+            this.buttonOptions.Text = "&Options...";
+            this.buttonOptions.UseVisualStyleBackColor = true;
+            this.buttonOptions.Click += new System.EventHandler(this.buttonOptions_Click);
+            // 
+            // buttonBrowser
+            // 
+            this.buttonBrowser.Location = new System.Drawing.Point(375, 19);
+            this.buttonBrowser.Name = "buttonBrowser";
+            this.buttonBrowser.Size = new System.Drawing.Size(24, 20);
+            this.buttonBrowser.TabIndex = 2;
+            this.buttonBrowser.Text = "...";
+            this.buttonBrowser.UseVisualStyleBackColor = true;
+            this.buttonBrowser.Click += new System.EventHandler(this.buttonBrowser_Click);
+            // 
+            // groupBoxRange
+            // 
+            this.groupBoxRange.Controls.Add(this.buttonSelectViews);
+            this.groupBoxRange.Controls.Add(this.radioButtonSelectView);
+            this.groupBoxRange.Controls.Add(this.radioButtonCurrentView);
+            this.groupBoxRange.Location = new System.Drawing.Point(17, 46);
+            this.groupBoxRange.Name = "groupBoxRange";
+            this.groupBoxRange.Size = new System.Drawing.Size(378, 73);
+            this.groupBoxRange.TabIndex = 4;
+            this.groupBoxRange.TabStop = false;
+            this.groupBoxRange.Text = "Range";
+            // 
+            // buttonSelectViews
+            // 
+            this.buttonSelectViews.Enabled = false;
+            this.buttonSelectViews.Location = new System.Drawing.Point(145, 42);
+            this.buttonSelectViews.Name = "buttonSelectViews";
+            this.buttonSelectViews.Size = new System.Drawing.Size(27, 21);
+            this.buttonSelectViews.TabIndex = 2;
+            this.buttonSelectViews.Text = "...";
+            this.buttonSelectViews.UseVisualStyleBackColor = true;
+            this.buttonSelectViews.Click += new System.EventHandler(this.buttonSelectViews_Click);
+            // 
+            // radioButtonSelectView
+            // 
+            this.radioButtonSelectView.AutoSize = true;
+            this.radioButtonSelectView.Location = new System.Drawing.Point(9, 44);
+            this.radioButtonSelectView.Name = "radioButtonSelectView";
+            this.radioButtonSelectView.Size = new System.Drawing.Size(132, 17);
+            this.radioButtonSelectView.TabIndex = 1;
+            this.radioButtonSelectView.Text = "Selected views/sheets";
+            this.radioButtonSelectView.UseVisualStyleBackColor = true;
+            this.radioButtonSelectView.CheckedChanged += new System.EventHandler(this.radioButtonSelectView_CheckedChanged);
+            // 
+            // radioButtonCurrentView
+            // 
+            this.radioButtonCurrentView.AutoSize = true;
+            this.radioButtonCurrentView.Checked = true;
+            this.radioButtonCurrentView.Location = new System.Drawing.Point(9, 20);
+            this.radioButtonCurrentView.Name = "radioButtonCurrentView";
+            this.radioButtonCurrentView.Size = new System.Drawing.Size(87, 17);
+            this.radioButtonCurrentView.TabIndex = 0;
+            this.radioButtonCurrentView.TabStop = true;
+            this.radioButtonCurrentView.Text = "Current view";
+            this.radioButtonCurrentView.UseVisualStyleBackColor = true;
+            // 
+            // ExportWithViewsForm
+            // 
+            this.AcceptButton = this.buttonSave;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.buttonCancel;
+            this.ClientSize = new System.Drawing.Size(411, 169);
+            this.Controls.Add(this.groupBoxRange);
+            this.Controls.Add(this.buttonOptions);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonBrowser);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.labelSaveAs);
+            this.Controls.Add(this.textBoxSaveAs);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "ExportWithViewsForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "Export";
+            this.groupBoxRange.ResumeLayout(false);
+            this.groupBoxRange.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TextBox textBoxSaveAs;
+        private System.Windows.Forms.Label labelSaveAs;
+        private System.Windows.Forms.Button buttonSave;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.Button buttonOptions;
+        private System.Windows.Forms.Button buttonBrowser;
+        private System.Windows.Forms.GroupBox groupBoxRange;
+        private System.Windows.Forms.Button buttonSelectViews;
+        private System.Windows.Forms.RadioButton radioButtonSelectView;
+        private System.Windows.Forms.RadioButton radioButtonCurrentView;
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportWithViewsForm.cs

@@ -0,0 +1,304 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+using System.IO;
+
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// It contains a dialog which provides the options of common information for export
+    /// </summary>
+    public partial class ExportWithViewsForm : System.Windows.Forms.Form
+    {
+        // Data class object of ExportDataWithViews
+        private ExportDataWithViews m_exportData;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="data"></param>
+        public ExportWithViewsForm(ExportDataWithViews data)
+        {
+            m_exportData = data;
+            InitializeComponent();
+            InitializeControls();
+        }
+
+        /// <summary>
+        /// Initialize values and status of controls
+        /// </summary>
+        private void InitializeControls()
+        {
+            textBoxSaveAs.Text = m_exportData.ExportFolder + "\\" + m_exportData.ExportFileName;
+
+            radioButtonCurrentView.Checked = true;
+
+            // Initialize the title
+            this.Text = m_exportData.Title;
+            if (m_exportData.ExportFormat == ExportFormat.SAT)
+            {
+                buttonOptions.Visible = false;
+            }
+            else if (m_exportData.ExportFormat == ExportFormat.Image)
+            {
+                this.Hide();
+                ExportIMGData exportIMGData = m_exportData as ExportIMGData;
+                using (ExportIMGOptionsForm exportOptionsForm = new ExportIMGOptionsForm(m_exportData))
+                {
+                    exportOptionsForm.ShowDialog();
+                }
+
+            }
+        }
+
+        /// <summary>
+        /// Provide the export option dialog
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonOptions_Click(object sender, EventArgs e)
+        {
+            // Export dwg
+            if (m_exportData.ExportFormat == ExportFormat.DWG)
+            {
+                bool contain3DView = false;
+
+                if (radioButtonCurrentView.Checked)
+                {
+                    if (m_exportData.Is3DView)
+                    {
+                        contain3DView = true;
+                    }
+                }
+                else
+                {
+                    if (m_exportData.SelectViewsData.Contain3DView)
+                    {
+                        contain3DView = true;
+                    }
+                }
+
+                ExportDWGData exportDWGData = m_exportData as ExportDWGData;
+                using (ExportBaseOptionsForm exportOptionsForm = new ExportBaseOptionsForm(exportDWGData.ExportOptionsData,
+                    contain3DView, "DWG"))
+                {
+                    exportOptionsForm.ShowDialog();
+                }
+            }
+            //Export dxf
+            else if (m_exportData.ExportFormat == ExportFormat.DXF)
+            {
+                bool contain3DView = false;
+
+                if (radioButtonCurrentView.Checked)
+                {
+                    if (m_exportData.Is3DView)
+                    {
+                        contain3DView = true;
+                    }
+                }
+                else
+                {
+                    if (m_exportData.SelectViewsData.Contain3DView)
+                    {
+                        contain3DView = true;
+                    }
+                }
+
+                ExportDXFData exportDXFData = m_exportData as ExportDXFData;
+
+                using (ExportBaseOptionsForm exportOptionsForm = new ExportBaseOptionsForm(exportDXFData.ExportOptionsData,
+                    contain3DView, "DXF"))
+                {
+                    exportOptionsForm.ShowDialog();
+                }
+
+            }
+            // Export dgn
+            else if (m_exportData.ExportFormat == ExportFormat.DGN)
+            {
+                ExportDGNData exportDGNData = m_exportData as ExportDGNData;
+                using (ExportDGNOptionsForm exportOptionsForm = new ExportDGNOptionsForm(exportDGNData))
+                {
+                    exportOptionsForm.ShowDialog();
+                }
+            }
+            // Export PDF
+            else if (m_exportData.ExportFormat == ExportFormat.PDF)
+            {
+               ExportPDFData exportPDFData = m_exportData as ExportPDFData;
+               using (ExportPDFOptionsForm exportOptionsForm = new ExportPDFOptionsForm(exportPDFData))
+               {
+                  exportOptionsForm.ShowDialog();
+               }
+            }
+
+            // Export DWF
+            else
+            {
+                ExportDWFData exportDWFData = m_exportData as ExportDWFData;
+                using (ExportDWFOptionForm exportOptionsForm = new ExportDWFOptionForm(exportDWFData))
+                {
+                    exportOptionsForm.ShowDialog();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Provide the views selecting dialog
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonSelectViews_Click(object sender, EventArgs e)
+        {
+            using (SelectViewsForm selectViewsForm = new SelectViewsForm(m_exportData.SelectViewsData))
+            {
+                m_exportData.SelectViewsData.SelectedViews.Clear();
+                selectViewsForm.ShowDialog();
+                if (m_exportData.SelectViewsData.SelectedViews.Size == 0)
+                {
+                    radioButtonCurrentView.Checked = true;
+                }
+                else
+                {
+                    radioButtonCurrentView.Checked = false;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Specify a file to export into
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonBrowser_Click(object sender, EventArgs e)
+        {
+            String fileName = String.Empty;
+            int filterIndex = -1;
+
+            DialogResult result = MainData.ShowSaveDialog(m_exportData, ref fileName, ref filterIndex);
+            if (result != DialogResult.Cancel)
+            {
+                textBoxSaveAs.Text = fileName;
+                if (m_exportData.ExportFormat == ExportFormat.DWG)
+                {
+                    ExportDWGData exportDWGData = m_exportData as ExportDWGData;
+                    exportDWGData.ExportFileVersion = exportDWGData.EnumFileVersion[filterIndex - 1];
+                }
+                else if (m_exportData.ExportFormat == ExportFormat.DXF)
+                {
+                    ExportDXFData exportDXFData = m_exportData as ExportDXFData;
+                    exportDXFData.ExportFileVersion = exportDXFData.EnumFileVersion[filterIndex - 1];
+
+                }
+            }
+        }
+
+        /// <summary>
+        /// Change the status of buttonSelectViews according to the selection
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void radioButtonSelectView_CheckedChanged(object sender, EventArgs e)
+        {
+            buttonSelectViews.Enabled = radioButtonSelectView.Checked;
+        }
+
+        /// <summary>
+        /// Transfer information back to ExportData class and execute EXPORT operation
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (ValidateExportFolder())
+            {
+                m_exportData.CurrentViewOnly = !radioButtonSelectView.Checked;
+
+                try
+                {
+                    bool exported = m_exportData.Export();
+                    if (!exported)
+                    {
+                        TaskDialog.Show("Export", "This project cannot be exported to " + m_exportData.ExportFileName +
+                        " in current settings.", TaskDialogCommonButtons.Ok);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    TaskDialog.Show("Export Failed", ex.ToString(), TaskDialogCommonButtons.Ok);
+                }
+
+                this.DialogResult = DialogResult.OK;
+                this.Close();
+            }
+        }
+
+        /// <summary>
+        /// Check whether the folder specified is valid
+        /// </summary>
+        /// <returns></returns>
+        private Boolean ValidateExportFolder()
+        {
+            String fileNameFull = textBoxSaveAs.Text;
+            //If the textBoxSaveAs is empty
+            if (String.IsNullOrEmpty(fileNameFull))
+            {
+                TaskDialog.Show("Information", "Please specify the folder and file name!", TaskDialogCommonButtons.Ok);
+                textBoxSaveAs.Focus();
+                return false;
+            }
+
+            //If has file name
+            if (!fileNameFull.Contains("\\"))
+            {
+                TaskDialog.Show("Information", "Please specify file name!", TaskDialogCommonButtons.Ok);
+                textBoxSaveAs.Focus();
+                return false;
+            }
+
+            //Whether the folder exists
+            String folder = Path.GetDirectoryName(fileNameFull);
+            if (!Directory.Exists(folder))
+            {
+                TaskDialog.Show("Information", "The specified folder does not exist!", TaskDialogCommonButtons.Ok);
+                textBoxSaveAs.Focus();
+                return false;
+            }
+
+            m_exportData.ExportFileName = Path.GetFileNameWithoutExtension(fileNameFull);
+            m_exportData.ExportFolder = folder;
+
+            return true;
+        }
+
+    }
+}

SDK/Samples/ImportExport/CS/Export/ExportWithViewsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SDK/Samples/ImportExport/CS/Export/SelectViewsData.cs

@@ -0,0 +1,172 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Data class which stores views information for export
+    /// </summary>
+    public class SelectViewsData
+    {
+        #region Class Member Variables
+        /// <summary>
+        /// Revit command data
+        /// </summary>
+        private ExternalCommandData m_commandData;
+
+        /// <summary>
+        /// All printable views(except sheets)
+        /// </summary>
+        private ViewSet m_printableViews;
+
+        /// <summary>
+        /// All printable sheets
+        /// </summary>
+        private ViewSet m_printableSheets;
+
+        /// <summary>
+        /// All selected views in UI
+        /// </summary>
+        private ViewSet m_selectedViews;
+
+        /// <summary>
+        /// Whether contain 3D view in selected views
+        /// </summary>
+        private bool m_contain3DView;
+        #endregion
+
+        #region Class Properties
+        /// <summary>
+        /// All printable views(except sheets)
+        /// </summary>
+        public ViewSet PrintableViews
+        {
+            get 
+            { 
+                return m_printableViews; 
+            }
+            set 
+            { 
+                m_printableViews = value; 
+            }
+        }
+
+        /// <summary>
+        /// All printable sheets
+        /// </summary>
+        public ViewSet PrintableSheets
+        {
+            get 
+            { 
+                return m_printableSheets; 
+            }
+            set 
+            { 
+                m_printableSheets = value;
+            }
+        }      
+
+        /// <summary>
+        /// All selected views in UI
+        /// </summary>
+        public ViewSet SelectedViews
+        {
+            get 
+            {
+                return m_selectedViews;
+            }
+            set 
+            { 
+                m_selectedViews = value;
+            }
+        }
+
+        /// <summary>
+        /// Whether contain 3D view in selected views
+        /// </summary>
+        public bool Contain3DView
+        {
+            get 
+            { 
+                return m_contain3DView; 
+            }
+            set 
+            { 
+                m_contain3DView = value; 
+            }
+        }
+        #endregion
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="commandData"></param>
+        public SelectViewsData(ExternalCommandData commandData)
+        {
+            m_commandData = commandData;
+            m_printableViews = new ViewSet();
+            m_printableSheets = new ViewSet();
+            m_selectedViews = new ViewSet();
+
+            GetAllPrintableViews();
+        }
+
+        /// <summary>
+        /// Get all printable views and sheets
+        /// </summary>
+        private void GetAllPrintableViews()
+        {
+            FilteredElementCollector collector = new FilteredElementCollector(m_commandData.Application.ActiveUIDocument.Document);
+            FilteredElementIterator itor = collector.OfClass(typeof(View)).GetElementIterator();
+            itor.Reset();
+            m_printableViews.Clear();
+            m_printableSheets.Clear();
+
+            while (itor.MoveNext())
+            {
+                View view = itor.Current as View;
+                // skip view templates because they're invisible in project browser, invalid for print
+                if (null == view || view.IsTemplate || !view.CanBePrinted)
+                {
+                    continue;
+                }
+                else if(view.ViewType == Autodesk.Revit.DB.ViewType.DrawingSheet)
+                {
+                    m_printableSheets.Insert(view);
+                }
+                else
+                {
+                    m_printableViews.Insert(view);
+                }
+            }
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/SelectViewsForm.Designer.cs

@@ -0,0 +1,192 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which lets users choose views to export.
+    /// </summary>
+    partial class SelectViewsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.groupBoxShow = new System.Windows.Forms.GroupBox();
+            this.checkBoxViews = new System.Windows.Forms.CheckBox();
+            this.checkBoxSheets = new System.Windows.Forms.CheckBox();
+            this.buttonCheckAll = new System.Windows.Forms.Button();
+            this.buttonCheckNone = new System.Windows.Forms.Button();
+            this.buttonOK = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.checkedListBoxViews = new System.Windows.Forms.CheckedListBox();
+            this.groupBoxShow.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // groupBoxShow
+            // 
+            this.groupBoxShow.Controls.Add(this.checkBoxViews);
+            this.groupBoxShow.Controls.Add(this.checkBoxSheets);
+            this.groupBoxShow.Location = new System.Drawing.Point(12, 288);
+            this.groupBoxShow.Name = "groupBoxShow";
+            this.groupBoxShow.Size = new System.Drawing.Size(311, 41);
+            this.groupBoxShow.TabIndex = 1;
+            this.groupBoxShow.TabStop = false;
+            this.groupBoxShow.Text = "Show";
+            // 
+            // checkBoxViews
+            // 
+            this.checkBoxViews.AutoSize = true;
+            this.checkBoxViews.Checked = true;
+            this.checkBoxViews.CheckState = System.Windows.Forms.CheckState.Checked;
+            this.checkBoxViews.Location = new System.Drawing.Point(148, 18);
+            this.checkBoxViews.Name = "checkBoxViews";
+            this.checkBoxViews.Size = new System.Drawing.Size(54, 17);
+            this.checkBoxViews.TabIndex = 1;
+            this.checkBoxViews.Text = "Views";
+            this.checkBoxViews.UseVisualStyleBackColor = true;
+            this.checkBoxViews.CheckedChanged += new System.EventHandler(this.checkBoxViews_CheckedChanged);
+            // 
+            // checkBoxSheets
+            // 
+            this.checkBoxSheets.AutoSize = true;
+            this.checkBoxSheets.Checked = true;
+            this.checkBoxSheets.CheckState = System.Windows.Forms.CheckState.Checked;
+            this.checkBoxSheets.Location = new System.Drawing.Point(7, 19);
+            this.checkBoxSheets.Name = "checkBoxSheets";
+            this.checkBoxSheets.Size = new System.Drawing.Size(59, 17);
+            this.checkBoxSheets.TabIndex = 0;
+            this.checkBoxSheets.Text = "Sheets";
+            this.checkBoxSheets.UseVisualStyleBackColor = true;
+            this.checkBoxSheets.CheckedChanged += new System.EventHandler(this.checkBoxSheets_CheckedChanged);
+            // 
+            // buttonCheckAll
+            // 
+            this.buttonCheckAll.Location = new System.Drawing.Point(333, 24);
+            this.buttonCheckAll.Name = "buttonCheckAll";
+            this.buttonCheckAll.Size = new System.Drawing.Size(85, 23);
+            this.buttonCheckAll.TabIndex = 0;
+            this.buttonCheckAll.Text = "Check &All";
+            this.buttonCheckAll.UseVisualStyleBackColor = true;
+            this.buttonCheckAll.Click += new System.EventHandler(this.buttonCheckAll_Click);
+            // 
+            // buttonCheckNone
+            // 
+            this.buttonCheckNone.Location = new System.Drawing.Point(333, 65);
+            this.buttonCheckNone.Name = "buttonCheckNone";
+            this.buttonCheckNone.Size = new System.Drawing.Size(85, 23);
+            this.buttonCheckNone.TabIndex = 1;
+            this.buttonCheckNone.Text = "Check &None";
+            this.buttonCheckNone.UseVisualStyleBackColor = true;
+            this.buttonCheckNone.Click += new System.EventHandler(this.buttonCheckNone_Click);
+            // 
+            // buttonOK
+            // 
+            this.buttonOK.DialogResult = System.Windows.Forms.DialogResult.OK;
+            this.buttonOK.Location = new System.Drawing.Point(238, 361);
+            this.buttonOK.Name = "buttonOK";
+            this.buttonOK.Size = new System.Drawing.Size(85, 23);
+            this.buttonOK.TabIndex = 2;
+            this.buttonOK.Text = "&OK";
+            this.buttonOK.UseVisualStyleBackColor = true;
+            this.buttonOK.Click += new System.EventHandler(this.buttonOK_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
+            this.buttonCancel.Location = new System.Drawing.Point(333, 361);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(85, 23);
+            this.buttonCancel.TabIndex = 3;
+            this.buttonCancel.Text = "&Cancel";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // checkedListBoxViews
+            // 
+            this.checkedListBoxViews.CheckOnClick = true;
+            this.checkedListBoxViews.FormattingEnabled = true;
+            this.checkedListBoxViews.Location = new System.Drawing.Point(12, 12);
+            this.checkedListBoxViews.Name = "checkedListBoxViews";
+            this.checkedListBoxViews.Size = new System.Drawing.Size(311, 274);
+            this.checkedListBoxViews.TabIndex = 3;
+            // 
+            // SelectViewsForm
+            // 
+            this.AcceptButton = this.buttonOK;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.CancelButton = this.buttonCancel;
+            this.ClientSize = new System.Drawing.Size(432, 394);
+            this.Controls.Add(this.checkedListBoxViews);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonOK);
+            this.Controls.Add(this.buttonCheckNone);
+            this.Controls.Add(this.buttonCheckAll);
+            this.Controls.Add(this.groupBoxShow);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "SelectViewsForm";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
+            this.Text = "View/Sheet Set";
+            this.groupBoxShow.ResumeLayout(false);
+            this.groupBoxShow.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.GroupBox groupBoxShow;
+        private System.Windows.Forms.CheckBox checkBoxViews;
+        private System.Windows.Forms.CheckBox checkBoxSheets;
+        private System.Windows.Forms.Button buttonCheckAll;
+        private System.Windows.Forms.Button buttonCheckNone;
+        private System.Windows.Forms.Button buttonOK;
+        private System.Windows.Forms.Button buttonCancel;
+        private System.Windows.Forms.CheckedListBox checkedListBoxViews;
+    }
+}

SDK/Samples/ImportExport/CS/Export/SelectViewsForm.cs

@@ -0,0 +1,192 @@
+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+// 
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+namespace Revit.SDK.Samples.ImportExport.CS
+{
+    /// <summary>
+    /// Provide a dialog which lets users choose views to export.
+    /// </summary>
+    public partial class SelectViewsForm : System.Windows.Forms.Form
+    {
+        /// <summary>
+        /// Data class
+        /// </summary>
+        private SelectViewsData m_selectViewsData;
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="selectViewsData"></param>
+        public SelectViewsForm(SelectViewsData selectViewsData)
+        {
+            InitializeComponent();
+            m_selectViewsData = selectViewsData;
+            InitializeControls();
+        }
+
+        /// <summary>
+        /// Initialize values and status of controls
+        /// </summary>
+        void InitializeControls()
+        {
+            UpdateViews();
+        }
+
+        /// <summary>
+        /// Check all items
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonCheckAll_Click(object sender, EventArgs e)
+        {
+            for(int i = 0; i < checkedListBoxViews.Items.Count; ++i)
+            {
+                checkedListBoxViews.SetItemChecked(i, true);
+            }
+        }
+
+        /// <summary>
+        /// Un-check all items
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonCheckNone_Click(object sender, EventArgs e)
+        {
+            for (int i = 0; i < checkedListBoxViews.Items.Count; ++i)
+            {
+                checkedListBoxViews.SetItemChecked(i, false);
+            }
+        }
+
+        /// <summary>
+        /// Whether to show the sheets
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void checkBoxSheets_CheckedChanged(object sender, EventArgs e)
+        {
+            UpdateViews();
+        }
+
+        /// <summary>
+        /// Whether to show the views (except sheets)
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void checkBoxViews_CheckedChanged(object sender, EventArgs e)
+        {
+            UpdateViews();
+        }
+
+        /// <summary>
+        /// Update the views in the checked list box
+        /// </summary>
+        private void UpdateViews()
+        {
+            checkedListBoxViews.Items.Clear();
+            if (checkBoxViews.Checked)
+            {
+                foreach (Autodesk.Revit.DB.View view in m_selectViewsData.PrintableViews)
+                {
+                    checkedListBoxViews.Items.Add(view.ViewType.ToString() + ": " + view.Name);
+                }
+            }
+
+            if (checkBoxSheets.Checked)
+            {
+                foreach (Autodesk.Revit.DB.ViewSheet viewSheet in m_selectViewsData.PrintableSheets)
+                {
+                    checkedListBoxViews.Items.Add("Drawing Sheet: " + viewSheet.SheetNumber + " - " +
+                        viewSheet.Name);
+                }
+            }
+            checkedListBoxViews.Sorted = true;
+        }
+
+        /// <summary>
+        /// OK button clicked
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void buttonOK_Click(object sender, EventArgs e)
+        {
+            GetSelectedViews();
+            this.Close();           
+        }
+
+        /// <summary>
+        /// Transfer information back to SelectViewsData class
+        /// </summary>
+        /// <returns></returns>
+        private void GetSelectedViews()
+        {
+            m_selectViewsData.Contain3DView = false;
+
+            foreach(int index in checkedListBoxViews.CheckedIndices)
+            {
+                String text = checkedListBoxViews.Items[index].ToString();
+                String sheetPrefix = "Drawing Sheet: ";
+                if (text.StartsWith(sheetPrefix))
+                {
+                    text = text.Substring(sheetPrefix.Length);
+                    String sheetNumber;
+                    String sheetViewName;
+                    sheetNumber = text.Substring(0, text.IndexOf(" - "));
+                    sheetViewName = text.Substring(text.IndexOf(" - ") + 3);
+                    foreach(Autodesk.Revit.DB.ViewSheet viewSheet in m_selectViewsData.PrintableSheets)
+                    {
+                        if(viewSheet.SheetNumber == sheetNumber && viewSheet.Name == sheetViewName)
+                        {
+                            m_selectViewsData.SelectedViews.Insert(viewSheet);
+                            break;
+                        }
+                    }
+                }
+                else
+                {
+                    String viewType = text.Substring(0, text.IndexOf(": "));
+                    String viewName = text.Substring(text.IndexOf(": ") + 2);
+                    foreach (Autodesk.Revit.DB.View view in m_selectViewsData.PrintableViews)
+                    {
+                        Autodesk.Revit.DB.ViewType vt = view.ViewType;
+                        if(viewType == vt.ToString() && viewName == view.Name)
+                        {
+                            m_selectViewsData.SelectedViews.Insert(view);
+                            if (vt == Autodesk.Revit.DB.ViewType.ThreeD)
+                            {
+                                m_selectViewsData.Contain3DView = true;
+                            }
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

SDK/Samples/ImportExport/CS/Export/SelectViewsForm.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>