added Revit 2020 SDK files

2026-08-14 16:54:18 +00:00 · 2019-09-11 14:43:53 +02:00
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+//
+// (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 Autodesk.Revit.DB;
+using Autodesk.Revit.DB.Structure;
+using Autodesk.Revit.UI;
+using System.Collections.Generic;
+using System.Linq;
+
+
+
+
+namespace Revit.SDK.Samples.SampleCommandsSteelElements.AddElementsToCustomConnection.CS
+{
+   /// <summary>
+   /// Implements the Revit add-in interface IExternalCommand
+   /// </summary>
+   [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
+   [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
+   [Autodesk.Revit.Attributes.Journaling(Autodesk.Revit.Attributes.JournalingMode.NoCommandData)]
+   public class Command : IExternalCommand
+   {
+      /// <summary>
+      /// Implement this method as an external command for Revit.
+      /// </summary>
+      /// <param name="commandData">An object that is passed to the external application 
+      /// which contains data related to the command, 
+      /// such as the application object and active view.</param>
+      /// <param name="message">A message that can be set by the external application 
+      /// which will be displayed if a failure or cancellation is returned by 
+      /// the external command.</param>
+      /// <param name="elements">A set of elements to which the external application 
+      /// can add elements that are to be highlighted in case of failure or cancellation.</param>
+      /// <returns>Return the status of the external command. 
+      /// A result of Succeeded means that the API external method functioned as expected. 
+      /// Cancelled can be used to signify that the user cancelled the external operation 
+      /// at some point. Failure should be returned if the application is unable to proceed with 
+      /// the operation.</returns>
+      public virtual Result Execute(ExternalCommandData commandData
+          , ref string message, ElementSet elements)
+      {
+         // Get the document from external command data.
+         UIDocument activeDoc = commandData.Application.ActiveUIDocument;
+         Autodesk.Revit.DB.Document doc = activeDoc.Document;
+         if (null == doc)
+         {
+            return Result.Failed;
+         }
+
+         // The transaction and its status. We use Revit's Transaction class for this purpose
+         Autodesk.Revit.DB.Transaction trans = new Autodesk.Revit.DB.Transaction(doc, "Add element(s) to custom connection");
+         TransactionStatus ts = TransactionStatus.Uninitialized;
+
+         try
+         {
+            // Selecting the custom connection, using Revit's StructuralConnectionHandler class
+            // for more details, please consult http://www.autodesk.com/adv-steel-api-walkthroughs-2019-enu
+            StructuralConnectionHandler conn = Utilities.Functions.SelectConnection(activeDoc);
+
+            if (null == conn)
+            {
+               return Result.Failed;
+            }
+
+            if (!(conn.IsCustom()))
+            {
+               return Result.Failed;
+            }
+            // Select elements to add to connection.
+            IList<Reference> refs = Utilities.Functions.SelectConnectionElementsCustom(activeDoc);
+
+            if (refs.Count() <= 0)
+            {
+               return Result.Failed;
+            }
+
+            // Start transaction
+            trans.Start();
+            // Adding the elements to the custom connection, using Revit's StructuralConnectionHandlerType class
+            StructuralConnectionHandlerType.AddElementsToCustomConnection(conn, refs);
+            // Commit the transaction
+            ts = trans.Commit();
+
+            if (ts != TransactionStatus.Committed)
+            {
+               message = "Failed to commit the current transaction !";
+               trans.RollBack();
+               return Result.Failed;
+            }
+         }
+         
+         catch (Autodesk.Revit.Exceptions.OperationCanceledException)
+         {
+            if (ts != TransactionStatus.Uninitialized)
+            {
+               trans.RollBack();
+            }
+            trans.Dispose();
+            return Result.Cancelled;
+         }
+         catch (Autodesk.Revit.Exceptions.ArgumentException)
+         {
+            if (ts != TransactionStatus.Uninitialized)
+            {
+               trans.RollBack();
+            }
+            trans.Dispose();
+            message = "Custom connection already contains the selected element(s)!";
+            return Result.Failed;
+         }
+         return Result.Succeeded;
+      }
+   }
+}