public ActionResult <SellingOrderDto> CreateSellingOrder([FromBody] SellingOrderDto order)
        {
            order.CustomerId = order.Customer.Id;
            order.Customer   = null;
            foreach (SellingTransactionDto tran in order.SellingTransactions)
            {
                tran.ProductDetailId = tran.ProductDetail.Id;
                tran.ProductDetail   = null;
            }

            var orderDto = _orderService.CreateSellingOrder(order);

            if (orderDto == null)
            {
                List <string> errorMessage = new List <string>();
                errorMessage.Add("Đã phát sinh lỗi, vui lòng thử lại");
                return(BadRequest(new ResponseDto(errorMessage, 500, orderDto)));
            }

            List <string> successMessage = new List <string>();

            successMessage.Add("Thêm thông tin thành công");
            var responseDto = new ResponseDto(successMessage, 200, orderDto);

            return(Ok(responseDto));
        }