partial void DeleteOrderDiscount(OrderDiscount instance);
 partial void UpdateOrderDiscount(OrderDiscount instance);
		private void detach_OrderDiscounts(OrderDiscount entity)
		{
			this.SendPropertyChanging();
			entity.Discount = null;
		}
 partial void InsertOrderDiscount(OrderDiscount instance);
		private void attach_OrderDiscounts(OrderDiscount entity)
		{
			this.SendPropertyChanging();
			entity.Discount = this;
		}