使用一個按鈕ASP.NET MVC提交多個單選按鈕值

Question

我的頁面上有三組單選按鈕，我想用一個按鈕提交它們的每個值。

<table>
    <tr>
     <td>
      @Html.RadioButton("rating1", "yes", true) Yes
      @Html.RadioButton("rating1", "no", false) No
      @Html.RadioButton("rating1", "maybe", false) Maybe
     </td>
    </tr>
<tr>
     <td>
      @Html.RadioButton("rating2", "yes", true) Yes
      @Html.RadioButton("rating2", "no", false) No
      @Html.RadioButton("rating2", "maybe", false) Maybe
     </td>
    </tr>
<tr>
     <td>
      @Html.RadioButton("rating3", "yes", true) Yes
      @Html.RadioButton("rating3", "no", false) No
      @Html.RadioButton("rating3", "maybe", false) Maybe
     </td>
    </tr>
</table>

我想將字典作為參數發送給控制器操作，以便可以檢索每個等級的值。

控制器如下所示：

public ActionResult Rate(Guid uniqueId, Dictionary<Guid, string> ratings)
        {
            [...]
        }

我努力了：

<input type="submit" value="Send Ratings" onclick="@Url.Action("Rate", "Controller", new {new Dictionary<string,string> {{"rating1", "yes"}, {"rating2", "no"}, {"rating3", "maybe"}})"></input>

但是不允許將Dictionary作為RouteValue傳遞。

如何通過一個按鈕/提交將所有3個單選按鈕[name，value]對發送給操作？ 另外，所有三個組的形式是否應相同或分開？

我願意使用javascript，但更喜歡使用Razor HTML幫助器。

謝謝

Answer 1

模型

public class ExampleViewModel
{
    public ExampleViewModel()
    {
        Answers = new Dictionary<string, string>();
        Questions = new List<KeyValuePair<string, List<string>>>();
    }

    public Dictionary<string, string> Answers { get; set; }
    public List<KeyValuePair<string, List<string>>> Questions { get; set; }
    public ExampleViewModel Add(string key, string[] value)
    {
        Questions.Add(new KeyValuePair<string, List<string>>(key, value.ToList()));
        return this;
    }
}

控制者

    [HttpGet]
    public ActionResult Index()
    {
        ExampleViewModel model = new ExampleViewModel();
        model.Add("rating1",new[] { "Yes" ,"No", "Maybe"});
        model.Add("rating2", new[] { "Yes", "No", "Maybe" });
        model.Add("rating3", new[] { "Yes", "No", "Maybe" });
        return View(model);
    }
    [HttpPost]
    public ActionResult Index(ExampleViewModel model)
    {
        //model.Answers is the dictionary of the values submitted 
        string s = model.Answers.Count.ToString();
        return View();
    }

視圖

    @model ExampleViewModel
    @using (Html.BeginForm())
    {
        <table class="table table-bordered table-striped">
            @for(int i=0;i<Model.Questions.Count;i++)
            {
                var question = Model.Questions[i];
                <tr>
                    <td>
                        @foreach (var answer in question.Value)
                        {
                            <input type="hidden" name="Model.Answers[@question.Key].Key" value="@question.Key" />
                            <input type="hidden" name="Model.Answers.Index" value="@question.Key" />
                            @Html.RadioButton("Model.Answers[" + question.Key+"].Value", answer, false) @answer
                        }
                    </td>
                </tr>
            }
            <tr>
                <td>
                    <input type="submit" class="btn btn-primary" value="Submit" />
                </td>
            </tr>
        </table>
    }

model.Answers將持有包含提交值的字典

Answer 2

您可以使用FormCollection門控您的帖子上的單選按鈕值。

您只需編寫var variable = f [“ rating1”]; 在您的發布方法中，您會在發布方法中獲得所選的單選按鈕值，

   public ActionResult Rate(Guid uniqueId,FormCollection f)

       {

           var variable1 = f["rating1"]; 

           var variable2 = f["rating2"]; 

           var variable3 = f["rating3"]; 

           [...]

       }