1 // GET: /Cart/
 2         //添加产品项目到购物车，如果没有传入Amount参数则默认购买数量为1
 3         //因为知道要通过Ajax调用这个Action，所以可以先标示[HttpPost]属性
 4         [HttpPost]//TODO:这里有问题，去掉就可以添加，待解决
 5         public ActionResult AddToCart(int ProductId, int Amount = 1)
 6         {
 7             var product = db.Products.Find(ProductId);
 8             //验证产品是否存在
 9             if (product==null)
10             {
11                 return HttpNotFound();
12             }
13             var existingCart = this.Carts.FirstOrDefault(p => p.Product.Id == ProductId);
14             if (existingCart!=null)
15             {
16                 existingCart.Amount += 1;
17             }
18             else
19             {
20                 this.Carts.Add(new Cart() {Product = product, Amount = Amount});
21             }
22             return new HttpStatusCodeResult(System.Net.HttpStatusCode.Created);
23         }

1 <td>
2        @Ajax.ActionLink("添加购物车", "AddToCart", "Cart", new { ProductId = item.Id }, ajaxOption)
3 </td>

 1 @{
 2     var ajaxOption = new AjaxOptions()
 3     {
 4         OnSuccess = "AddToCartSuccess",
 5         OnFailure = "AddToCartFailure",
 6         HttpMethod = "Post"
 7     };
 8 }
 9 @{
10     @Scripts.Render("~/bundles/jqueryval")
11     <script>
12         function AddToCartSuccess() {
13             alert('添加购物车成功');
14         }
15 
16         function AddToCartFailure() {
17             alert('添加购物车失败(HTTP状态代码：' + xhr.status + ')');
18         }
19     </script>
20 }