Question

我有以下代码

@model IEnumerable<Shop_Online.com.Models.Product>
<style type="text/css">
#Total_Products 
{
    width:20px;
    margin-left:10px;
}
</style>
@using (Html.BeginForm())
{
<div style="width: 860px; margin: 0 auto" class="main">
    <table border="1" style="font-family: Verdana; font-size: 13px">
        <tr style="background-color: #f2f2f2;height:30px">
            <th colspan="4">ITEM</th>
            <th>DELIEVERY DETAILS</th>
            <th>QTY</th>
            <th>SUB TOTAL</th>
            <th>Remove Items</th>
        </tr>
        @foreach (var item in Model)
        {
            <tr>
                <td colspan="4" style="width: 46%">
                    <table style="font-family: Verdana; font-size: 13px">
                        <tr>
                            <td>
                                <img src="@Url.Content(item.Photo)" alt="Image" style="width:36px" />
                            </td>
                            <td>
                                @Html.DisplayFor(x => item.Model_Name)
                            </td>
                        </tr>
                        <tr>
                            <td style="color: #ccc">30 days Replacement</td>
                        </tr>
                    </table>
                </td>
                <td style="width: 39%">Free Delievery Delivered in 2-3 business days.</td>
                <td style="width: 5%">@Html.TextBox("Total_Products",1)</td>
                <td style="width: 50%"><b>Rs. @Html.DisplayFor(x => item.Price)</b></td>
                <td><button type="submit" class="remove" value="@item.Id" id="@item.Id" name="Action">Remove</button></td>
            </tr>
        }
    </table>
    <div style="width: 100%; height: 70px; background-color: #f2f2f2">
        <div style="width: 75%; height: 70px; float: left; font-family: Verdana; font-size: 13px">
        </div>
        <div style="width: 25%; height: 70px; float: left; font-family: Verdana; padding-top: 20px; font-size: 13px">
            Estimated Price: <b>Rs.@ViewBag.total</b>
        </div>
    </div>
    <div class="order" style="width: 100%; height: 70px">
        <div class="left-order" style="width: 75%; height: 70px; float: left"></div>
        <div class="left-order" style="width: 25%; float: left; height: 70px">
            <input type="submit" name="Action" value="PLACE ORDER" style="border: 1px solid #ec6723; width: 216px; cursor: pointer; height: 45px; color: #fff; background: -webkit-linear-gradient(top,#f77219 1%,#fec6a7 3%,#f77219 7%,#f75b16 100%)" />
        </div>

    </div>
</div>

}

这是控制器

public ActionResult Order(IEnumerable<Product> products, string Action)
    {
        if (Action == "PLACE ORDER")
        {
         //some code here
    }

产品对象

 public partial class Product
{
    public int Id { get; set; }
    public string Model_Name { get; set; }
    public string Company_Name { get; set; }
    public Nullable<int> Price { get; set; }
    public string Photo { get; set; }
    public string Big_Photo { get; set; }
    public string AlternateText { get; set; }
    public string Model_FullName { get; set; }
    public Nullable<int> Product_Id { get; set; }
    public string Video_record { get; set; }
    public string second_camera { get; set; }
    public string primary_camera { get; set; }
    public string touch_screen { get; set; }
    public string operating_sys { get; set; }
    public string warranty { get; set; }
    public Nullable<int> Company_Id { get; set; }
    public Nullable<int> Total_Products { get; set; }
}

当我尝试访问IEnumerable值时，我变为null。我正在为Action变量获得价值。我甚至尝试使用for循环，但它仍然无效。我可以显示。这是我要问的基本内容，但我尝试在谷歌上搜索但却无法纠正我的错误。任何人都可以告诉我如何纠正上述代码。感谢

Answer 1

为了使POST中的表单提交到recognize a collection of entities的默认MVC模型绑定机制，您需要确保{{1}中字段的名称具有基于零的运行索引返回控制器的Html元素的属性，例如：

name

您还有其他几种选择：

构建表单元素的JSON数组，然后通过AJAX将数组发布到控制器
您可以提出自己的命名机制，然后手动解析FormCollection，或者构建自定义模型绑定器

另外，您可能希望更改@for (var i = 0; i < 10; i ++) { <input type='text' name="products[@i].ProductId"/> <input type='text' name="products[@i].Total_Products"> <br> }变量的名称，以避免与Linq Action delegate混淆

访问IEnumerable值列表

1 个答案: