Question

我需要传递一个动态的radiobuttonitems列表，并获取所选的单选按钮以及其他模型信息。

public class MyItem
{
    public int Id { get; set; }
    public String Name { get; set; }
    public bool Selected { get; set; }
}
public class MyFormModel
{
    public List<MyItem> RadioItems;
    public String SomeQuestion;
    public String SelectedButton { get; set; }
    public String Answer { get; set; }
}

public class HomeController : Controller
{
    public ActionResult Index()
    {
        var items = new List<MyItem>();
        items.Add(new MyItem() { Id = 1, Name = "Male", Selected = true });
        items.Add(new MyItem() { Id = 2, Name = "Female", Selected = false });
        var m = new MyFormModel();
        m.RadioItems = items;
        m.SomeQuestion = "What's your favorite color?";
        return View(m);
    }

    [HttpPost]
    public ActionResult Index(MyFormModel model)
    {
        Console.WriteLine(model.Answer); //works
        Console.WriteLine(model.SelectedButton); //does not work
        return null;
    }

查看

@model WebApplication1.Controllers.MyFormModel
@using (Html.BeginForm("Index", "Home", new {ReturnUrl = ViewBag.ReturnUrl}, FormMethod.Post, new {@class = "form-horizontal", role = "form"}))
{
    foreach (var r in Model.RadioItems)
    {
        @Html.RadioButton("MyGroup",r.Id,r.Selected)  @Html.Label(r.Name)<br/>
    }
    @Html.Label(Model.SomeQuestion)    @Html.TextBoxFor(m=>m.Answer)
    <input id="Submit1" type="submit" value="submit" />
}

我需要做什么才能在回发中确定所选的单选按钮？我一定错过了一些简单的事情

Answer 1

您的模型必须与视图匹配，因此要么将视图更改为

 @Html.RadioButton("SelectedButton",r.Id,r.Selected)

或添加

public string MyGroup {get;set;}

到你的模特。

Answer 2

您可以在Html Helper中为模型指定“已选择”单选按钮。

@Html.RadioButtonFor(model => model.SelectedButton, "false")

如何在模型中传回选定的单选按钮？

2 个答案: