[英]Url.Action not passing parameter to index
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,从下拉列表中选择的LanguageId值不会传递。 原始值为。
<a href="@Url.Action("Index", "VideoLanguage",new { videoId = Model.VideoId, languageId = Model.SelectedLanguage.LanguageId })" class="linkbutton">Add Language</a>
在页面加载时设置,因此HTML中的值将被硬编码在其中。您需要在Javascript中设置超链接参数或使用:
<input type="submit" value="Index" />
尝试这个:
@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帮助器,然后提交表单
@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Controller中,您还应该具有相同名称的两个方法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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