When Temporary View Properties mode is in progress it provides view id that overrode settings for current view. Outside Temporary View Properties mode InvalidElementId will be returned.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since: 2014
Syntax
Remarks
Returned ElementId might refer to element that was deleted. It will happen when Temporary View Properties mode was applied basing on template that next was deleted.