private void detach_Order_Details(Order_Detail entity)
		{
			this.SendPropertyChanging();
			entity.Product = null;
		}
 partial void UpdateOrder_Detail(Order_Detail instance);
 partial void DeleteOrder_Detail(Order_Detail instance);
 partial void InsertOrder_Detail(Order_Detail instance);
 private void detach_Order_Details(Order_Detail entity)
 {
     this.SendPropertyChanging();
     entity.Product = null;
 }
 partial void DeleteOrder_Detail(Order_Detail instance);
 partial void UpdateOrder_Detail(Order_Detail instance);
 partial void InsertOrder_Detail(Order_Detail instance);