Share Email Facebook Twitter LinkedIn DocumentChangedEventArgs.Operation Property The operation associated with this event Namespace: Autodesk.Revit.DB.EventsAssembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public UndoOperation Operation { get; }Property ValueUndoOperation See AlsoReferenceDocumentChangedEventArgs ClassAutodesk.Revit.DB.Events Namespace