Share Email Facebook Twitter LinkedIn UIApplication.ActiveAddInId Property Get current active external application or external command id. Namespace: Autodesk.Revit.UIAssembly: RevitAPIUI (in RevitAPIUI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public AddInId ActiveAddInId { get; }Property ValueAddInId See AlsoReferenceUIApplication ClassAutodesk.Revit.UI Namespace