Share Email Facebook Twitter LinkedIn Category.Id Property Returns the category id associated with the category object. Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34) Syntax C# public ElementId Id { get; }Property ValueElementId See AlsoReferenceCategory ClassAutodesk.Revit.DB Namespace