asp.net-mvc – 如何在ASP.NET MVC上为GET和POST操作绑定Dictionary类型参数

我想定义一个显示标签和复选框列表的视图,用户可以更改复选框,然后回发.我在回复字典时遇到问题.也就是说,post方法的字典参数为null.

以下是GET和POST操作的操作方法：

public ActionResult MasterEdit(int id)
        {

            Dictionary<string, bool> kv = new Dictionary<string, bool>()
                                            {
                                                {"A", true},
                                                {"B", false}
                                            };

            return View(kv);
        }


        [HttpPost]
        public ActionResult MasterEdit(Dictionary<string, bool> kv)
        {
            return RedirectToAction("MasterEdit", new { id = 1 });
        }

Beliw是观点

@model System.Collections.Generic.Dictionary<string, bool>
@{
    ViewBag.Title = "Edit";
}
<h2>
    MasterEdit</h2>

@using (Html.BeginForm())
{ 

    <table>
        @foreach(var dic in Model)
        { 
            <tr>
                @dic.Key <input type="checkbox" name="kv" value="@dic.Value"  />
            </tr>


        }
    </table>


   <input type="submit" value="Save" />
}

任何想法都将非常感谢！

不要为此使用字典.它们与模型绑定不匹配.可能是PITA.

视图模型更合适：

public class MyViewModel
{
    public string Id { get; set; }
    public bool Checked { get; set; }
}

然后一个控制器：

public class HomeController : Controller
{
    public ActionResult Index() 
    {
        var model = new[]
        {
            new MyViewModel { Id = "A", Checked = true },
            new MyViewModel { Id = "B", Checked = false },
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(IEnumerable<MyViewModel> model)
    {
        return View(model);
    }
}

然后是相应的视图(〜/ Views / Home / Index.cshtml)：

@model IEnumerable<MyViewModel>

@using (Html.BeginForm())
{
    <table>
        <thead>
            <tr>
                <th></th>
            </tr>
        </thead>
        <tbody>
            @Html.EditorForModel()
        </tbody>
    </table>
    <input type="submit" value="Save" />
}

最后是相应的编辑器模板(〜/ Views / Home / EditorTemplates / MyViewModel.cshtml)：

@model MyViewModel
<tr>
    <td>
        @Html.HiddenFor(x => x.Id)
        @Html.CheckBoxFor(x => x.Checked)
        @Html.DisplayFor(x => x.Id)
    </td>
</tr>