partial void DeleteT_PurchaseOrder(T_PurchaseOrder instance);
 partial void InsertT_PurchaseOrder(T_PurchaseOrder instance);
 partial void UpdateT_PurchaseOrder(T_PurchaseOrder instance);
		private void detach_T_PurchaseOrder(T_PurchaseOrder entity)
		{
			this.SendPropertyChanging();
			entity.T_PrintJob = null;
		}