Url.操作未将参数传递到索引

本文关键字：索引 参数传递 操作 Url | 更新日期: 2023-09-27 18:25:10

在我的控制器中，我有以下代码：

    public ActionResult Index(int? videoId, int languageId = 0)
        {
               //Some code 
        }

然后在我的.chtml页面中，我这样引用它：

@using (Html.BeginForm("Index", "VideoLanguage", FormMethod.Post))
{
     @Html.Hidden("videoId", Model.VideoId)
     @Html.Hidden("videoLanguageId", Model.SelectedLanguage.LanguageId)
    <div>
        @Html.DropDownListFor(model => model.SelectedLanguage.LanguageId, ViewData["LanguageId"] as SelectList)
    </div>
    <div>
          <a href="@Url.Action("Index", "VideoLanguage",new { videoId = Model.VideoId, languageId = Model.SelectedLanguage.LanguageId })" class="linkbutton">Add Language</a>
    </div>
... code keeps going

因此，当我单击按钮时，不会传递从下拉列表中选择的LanguageId值。原始值为.

Url.操作未将参数传递到索引

<a href="@Url.Action("Index", "VideoLanguage",new { videoId = Model.VideoId, languageId = Model.SelectedLanguage.LanguageId })" class="linkbutton">Add Language</a>

是在页面加载时设置的，因此HTML中的值将被硬编码。您需要做的是在Javascript中设置超链接参数，或者使用：

<input type="submit" value="Index" />

请参阅MVC 4中如何将文本框值从视图传递到控制器？

试试这个：

@using (Html.BeginForm("Index", "VideoLanguage", FormMethod.Post, new { videoId = Model.VideoId, languageId = Model.SelectedLanguage.LanguageId }))
{
  ....
}

您应该将参数传递给@Html.BeginForm助手，然后只提交表单

@using (Html.BeginForm("Index", "VideoLanguage", FormMethod.Post, new { videoId = Model.VideoId, languageId = Model.SelectedLanguage.LanguageId }))
{
     @Html.Hidden("videoId", Model.VideoId)
     @Html.Hidden("videoLanguageId", Model.SelectedLanguage.LanguageId)
    <div>
        @Html.DropDownListFor(model => model.SelectedLanguage.LanguageId, ViewData["LanguageId"] as SelectList)
    </div>
    <div>
       <input type="submit" value="Add Language"/>
    </div>
... code keeps going
}

在您的控制器中，您还应该有两个名称相同的方法GET和SET：

public ActionResult Index()
        {
//Here just get a view
        }
[HttpPost]
public ActionResult Index(int? videoId, int languageId = 0)
        {
 //Here code to save in database
        }
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