public double GetTotalInAOrder(Order order)
        {
            var orderDetails = context.OrderDetails.ToList().FindAll(el => el.OrderId == order.Id);

            double total = new double();

            foreach (var item in orderDetails)
            {
                var product = context.Products.FirstOrDefault(el => el.Id == item.ProductId);
                total += detailRepository.CalculateMoney(product.PricePerUnit, item.Discount, item.Quantity);
            }
            return(total);
        }
        public JsonResult GetPrice(int ProductId, int Discount, int Quantity)
        {
            Product product = detailRepository.GetProductById(ProductId);

            return(Json(detailRepository.CalculateMoney(product.PricePerUnit, Discount, Quantity)));
        }