View.IsolateElementTemporary Error

[Yna_Db]

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How to create an icollection to work with revit api

You have done it in line 38. Try to replace ids with col1 in line 44 Edit: To answer the title of the thread: A C# ICollection(ElementId) equivalent in python : List[ElementId] Remember the following reference clr.AddReference(“System”) from System.Collections.Generic import List Example: col1 = List[ElementId](ids)