partial void DeleteMapPolygonCoordinate(MapPolygonCoordinate instance);
 partial void InsertMapPolygonCoordinate(MapPolygonCoordinate instance);
 partial void UpdateMapPolygonCoordinate(MapPolygonCoordinate instance);
		private void detach_MapPolygonCoordinates(MapPolygonCoordinate entity)
		{
			this.SendPropertyChanging();
			entity.MapPolygon = null;
		}