added Revit 2022 SDK minus except *rvt and *rfa

SDK/Samples/VisibilityControl/CS/VisibilityCtrl.cs

@@ -0,0 +1,171 @@
+//
+// (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 Autodesk.Revit.DB;
+
+namespace Revit.SDK.Samples.VisibilityControl.CS
+{
+    /// <summary>
+    /// An enumerate type listing the types of element select mode.
+    /// </summary>
+    public enum IsolateMode
+    {
+        None,
+        PickOne,
+        WindowSelect
+    }
+
+    /// <summary>
+    /// An object control visibility by category
+    /// </summary>
+    public class VisibilityCtrl
+    {
+        private Autodesk.Revit.UI.UIDocument m_document;    // the active document
+        private Hashtable m_allCategories; // all categories name with its visibility
+        private Hashtable m_categoriesWithName; // all categories with its name
+        private IsolateMode m_isolateMode;  // the mode to select element(s)
+        
+        /// <summary>
+        /// get all categories name with its visibility
+        /// </summary>
+        public Hashtable AllCategories
+        {
+            get
+            {
+                return m_allCategories;
+            }
+        }
+
+        /// <summary>
+        /// get and set the mode to select element(s)
+        /// </summary>
+        public IsolateMode IsolateMode
+        {
+            get
+            {
+                return m_isolateMode;
+            }
+            set
+            {
+                m_isolateMode = value;
+            }
+        }
+
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        /// <remarks>get all categories of this document. check its visibility for 
+        /// the active document, and initialize a hashtable.</remarks>
+        public VisibilityCtrl(Autodesk.Revit.UI.UIDocument document)
+        {
+            if (null == document)
+            {
+                throw new ArgumentNullException("document");
+            }
+            else
+            {
+                m_document = document;
+            }
+
+            // initialize the two table
+            m_allCategories = new Hashtable();
+            m_categoriesWithName = new Hashtable();
+
+            // fill out the two table
+            foreach (Category category in m_document.Document.Settings.Categories)
+            {
+                if(category.get_AllowsVisibilityControl(m_document.Document.ActiveView))
+                {
+                    m_allCategories.Add(category.Name, category.get_Visible(m_document.Document.ActiveView));
+                    m_categoriesWithName.Add(category.Name, category);
+                }                
+            }
+        }
+
+        /// <summary>
+        /// Set the visibility for the active view
+        /// </summary>
+        /// <returns>Return true if operation successed, or else, return false.</returns>
+        public bool SetVisibility(bool visible, string name)
+        {
+            try
+            {
+                Category cat = m_categoriesWithName[name] as Category;                
+                m_document.Document.ActiveView.SetCategoryHidden(cat.Id, !visible);
+                //or cat.set_Visible(m_document.ActiveView, visible);
+                m_allCategories[cat.Name] = visible;
+            }
+            catch (Exception)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Isolate elements with the same categories that the selected elements belong to
+        /// using PickOne or WindowSelect.
+        /// </summary>
+        public void Isolate()
+        {
+            //m_document.Selection.Elements.Clear();
+            System.Collections.Generic.ICollection<Reference> elements = null;
+            switch (m_isolateMode)
+            {
+                case IsolateMode.PickOne: 
+                    // One more element will be added to modscope 
+                    // if user really selects an element which differs from the elements in 
+                    // modscope before user's pick one operation.
+                    elements.Add(m_document.Selection.PickObject(Autodesk.Revit.UI.Selection.ObjectType.Element));
+                    break;
+                case IsolateMode.WindowSelect:
+                    // Elements will be added to modscope if possilbe.
+                    elements = m_document.Selection.PickObjects(Autodesk.Revit.UI.Selection.ObjectType.Element);
+                    break;
+                default:
+                    break;
+            }
+
+            // ElementSet elements = m_document.Selection.Elements;
+
+            // hide all categories elements
+            foreach (Category cat in m_document.Document.Settings.Categories)
+            {
+                SetVisibility(false, cat.Name);
+            }
+
+            // set the visibility for the selection elements
+            foreach (Reference reference in elements)
+            {
+                Category cat = m_document.Document.GetElement(reference).Category;
+                if (null != cat && !string.IsNullOrEmpty(cat.Name))
+                {
+                    SetVisibility(true, cat.Name);
+                }
+            }
+        }
+    }
+}