Share Email Facebook Twitter LinkedIn IFCExternalServiceUIData.ParamId Property the parameter id Namespace: Autodesk.Revit.UIAssembly: RevitAPIUI (in RevitAPIUI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public ElementId ParamId { get; }Property ValueElementId See AlsoReferenceIFCExternalServiceUIData ClassAutodesk.Revit.UI Namespace