partial void DeleteZonePoint(ZonePoint instance);
 partial void UpdateZonePoint(ZonePoint instance);
		private void detach_ZonePoints(ZonePoint entity)
		{
			this.SendPropertyChanging();
			entity.Zone = null;
		}
 partial void InsertZonePoint(ZonePoint instance);
		private void attach_ZonePoints(ZonePoint entity)
		{
			this.SendPropertyChanging();
			entity.Zone = this;
		}