assets/samples/Samples/ExtensibleStorageUtility/CS/QueryStorage.cs

//
// (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 notify appears in all copies and
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB.ExtensibleStorage;



namespace Revit.SDK.Samples.ExtensibleStorageUtility.CS
{

   /// <summary>
   /// Checks to see if any extensible storage in the document exists and displays elements
   /// containing storage to the user.
   /// </summary>
   [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
   [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
   public class QueryStorage: IExternalCommand
   {
      public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
      {
         Document document = commandData.Application.ActiveUIDocument.Document;
         string storageElements = StorageUtility.GetElementsWithAllSchemas(document);
         TaskDialog.Show("ExtensibleStorageUtility", storageElements);

  
         return Result.Succeeded;
      }
   }

}