partial void Deleteres_red_test(res_red_test instance);
 partial void Insertres_red_test(res_red_test instance);
 partial void Updateres_red_test(res_red_test instance);
		private void detach_res_red_test(res_red_test entity)
		{
			this.SendPropertyChanging();
			entity.check_bill = null;
		}