Asp.net mvc 4 ASP.NET MVC 4-ListBoxFor，在ActionLink中发送selectedValue

我有一张模特的名单。我想检索listBoxSelectedValue，并将其发送到我的操作链接中进行编辑

我的看法是：

@using (Html.BeginForm())
{
    @Html.ListBoxFor(a => a.SelectedApplis, new SelectList(ViewBag.Applis,"ID","Name", Model.SelectedApplis))<br/>
    @Html.ActionLink("Add","Create","Application")<br/>
    @Html.ActionLink("Edit","Edit","Application", null, new { listAppId = Model.SelectedApplis})<br/>
    @Html.ActionLink("Delete","Delete","Application")<br/>
}  

在我的应用程序控制器中：

    public ActionResult Edit(ListBoxApplication listAppId)
    {
        // I WANT TO RETRIEVE MY listAppId HERE, but it is always 'null'
        return View();
    }

所以我认为我的问题在于actionLink：

@Html.ActionLink("Edit","Edit","Application", null, new { listAppId = Model.SelectedApplis})

Me编辑方法不是实际的控制器主/索引。我需要将操作链接中列表框的selectedValue发送到应用程序/编辑

listAppId始终为“null”。它无法检索值。。。我的actionLink有错误吗

---

感谢您的帮助

我不相信操作链接会触发对服务器的回发。请尝试以下方法：

    @Html.ActionLink("Delete","Delete","Application")<br/>
    @Html.ActionLink("Add","Create","Application")<br/>

    @using (Html.BeginForm("Detail","Application"))
    {
        @Html.ListBoxFor(a => a.SelectedApplis, new SelectList(ViewBag.Applis)) //not sure what the other params you had here were for, but it should work like this
        <br/>
        <input type="submit" name="Edit" value = "Edit"/>
        @*added in response to comment*@
        <input type="submit" name="Delete" value = "Delete"/>
        <input type="submit" name="Add" value = "Add"/>
    }  

---

从您发布的代码来看，ApplicationModels.GetListApplications似乎返回null。我填写了我的listApplications。它们显示在我的列表框中。所以GetListApplications正在运行。所以Edit需要一个ListBoxApplication，而您正在发送一个IEnumerable？这就是我看到的吗？对不起，我之前在测试输入，但忘记在我的帖子中更改它。。。我的编辑方法需要一个IEnumerable。谢谢，我想你是对的，我们不能在一个表单中有多个操作链接。。。但你说的是多种形式。如何为每个actionlink提供3个表单，并且只有一个列表框？列表框只有一种形式否？或者有其他方法吗？好的，有两种方法，一种方法是让所有的动作链接变成提交按钮，参见上面的代码，并将值更改为想要显示的文本。现在，如果你给他们每个人一个名字，并将这个名字作为参数添加到你的控制器中，作为字符串或bool，那么你就可以知道是哪个按钮被点击了。给我一分钟我会在回复中模拟一个控制器

@Html.ActionLink("Edit","Edit","Application", null, new { listAppId = Model.SelectedApplis})

    @Html.ActionLink("Delete","Delete","Application")<br/>
    @Html.ActionLink("Add","Create","Application")<br/>

    @using (Html.BeginForm("Detail","Application"))
    {
        @Html.ListBoxFor(a => a.SelectedApplis, new SelectList(ViewBag.Applis)) //not sure what the other params you had here were for, but it should work like this
        <br/>
        <input type="submit" name="Edit" value = "Edit"/>
        @*added in response to comment*@
        <input type="submit" name="Delete" value = "Delete"/>
        <input type="submit" name="Add" value = "Add"/>
    }  

public ActionResult Detail(ListBoxApplication listAppId, bool Edit, bool Add, bool Delete)
{
    if(//check your bools here){
    }
    return View();
}