partial void DeleteSERVICE_CHARGE(SERVICE_CHARGE instance);
 partial void InsertSERVICE_CHARGE(SERVICE_CHARGE instance);
 partial void UpdateSERVICE_CHARGE(SERVICE_CHARGE instance);
		private void detach_SERVICE_CHARGEs(SERVICE_CHARGE entity)
		{
			this.SendPropertyChanging();
			entity.JOB_CARD = null;
		}