public ActionResult AddProduct(Product product, List<ImageUpload> image)
        {
            var productRepo = new ProductRepository(Properties.Settings.Default.ConStr);
            var imageRepo = new ImageRepository(Properties.Settings.Default.ConStr);

            productRepo.AddProduct(product);
            List<Image> images = new List<Image>();
            foreach (ImageUpload i in image)
            {
                var fileName = Guid.NewGuid() + Path.GetExtension(i.Image.FileName);
                i.Image.SaveAs(Server.MapPath("~/Images/") + fileName);
                images.Add(new Image
                {
                    ProductId = product.ProductId,
                    FileName = fileName,
                });
            }
            imageRepo.AddImage(images);
            return Redirect("index");
        }