partial void DeleteOrderHeader(OrderHeader instance);
 partial void UpdateOrderHeader(OrderHeader instance);
 partial void InsertOrderHeader(OrderHeader instance);
		private void detach_OrderHeader(OrderHeader entity)
		{
			this.SendPropertyChanging();
			entity.Location = null;
		}
		private void detach_OrderHeader(OrderHeader entity)
		{
			this.SendPropertyChanging();
			entity.Customer = null;
		}
		private void detach_OrderHeader(OrderHeader entity)
		{
			this.SendPropertyChanging();
			entity.OrderStatus = null;
		}