private void detach_ProductOrders(ProductOrder entity)
 {
     this.SendPropertyChanging();
     entity.Product = null;
 }
 partial void DeleteProductOrder(ProductOrder instance);
 private void attach_ProductOrders(ProductOrder entity)
 {
     this.SendPropertyChanging();
     entity.Product = this;
 }
 partial void InsertProductOrder(ProductOrder instance);
 partial void UpdateProductOrder(ProductOrder instance);
		private void detach_ProductOrders(ProductOrder entity)
		{
			this.SendPropertyChanging();
			entity.Product = null;
		}
		private void attach_ProductOrders(ProductOrder entity)
		{
			this.SendPropertyChanging();
			entity.Product = this;
		}
 partial void DeleteProductOrder(ProductOrder instance);
 partial void UpdateProductOrder(ProductOrder instance);
 partial void InsertProductOrder(ProductOrder instance);