Share Email Facebook Twitter LinkedIn CitySet.Clear Method Removes every city from the set, rendering it empty.Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public virtual void Clear() See AlsoReferenceCitySet ClassAutodesk.Revit.DB Namespace