Share Email Facebook Twitter LinkedIn AssemblyMemberDifferentCategory.CategoryId1 Property Category id of the first assembly member Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public ElementId CategoryId1 { get; }Property ValueElementId See AlsoReferenceAssemblyMemberDifferentCategory ClassAutodesk.Revit.DB Namespace