partial void DeleteBrokerMapValue(BrokerMapValue instance);
 partial void InsertBrokerMapValue(BrokerMapValue instance);
 partial void UpdateBrokerMapValue(BrokerMapValue instance);
		private void detach_BrokerMapValues(BrokerMapValue entity)
		{
			this.SendPropertyChanging();
			entity.lkupExtSource = null;
		}