如何在模型中傳回選定的單選按鈕？

Question

我需要傳遞一個動態列表的radiobuttonitems，並取回選定的單選按鈕以及其他模型信息。

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" /> 
} 

什麼我需要做的，這樣的回發我能確定所選擇的單選按鈕？我必須缺少一些簡單的東西

Answer 1

您的型號相匹配的觀點，所以認爲要麼改變

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

或添加

public string MyGroup {get;set;} 

到模型。

Answer 2

您在Html Helper中爲您的模型分配「選定」單選按鈕。

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