@ Html.RadioButtonFor获得选择的选项，允许单选

Question

I would like to have two groups of Radio buttons in a form and get which item has been checked avoiding the possibility to select several radio buttons but as soon as I add a name to my radio buttons input then I cannot see in my Model anymore which item is checked.

Here is my view:

 ...
@using (Html.BeginForm("Validate", "Quiz"))
{
    @for (int i = 0; i < Model.questions.Count(); i++)
    {
          <ul>
                 @{ int j = 0; }
                 @foreach (var ch in Model.questions[i].choices)
                 {
                      <li>
                             @Html.RadioButtonFor(m =>    m.questions[i].choices[j].isChecked, true, new { id = ch.choiceId}) @ch.choiceTitle
                         @Html.HiddenFor(m => m.questions[i].choices[j].isChecked) 
                      </li>
                }
          </ul>
      }

<input type="submit" value="Valider" />

}

And here is my structure:

        public class QuizViewModel
        {
            public string quizTitle { get; set; }
            public string quizListDisplay { get; set; }
            public List<QuizQuestion> questions { get; set; }
            public Guid owner { get; set; }
        }

    public class QuizQuestion
    {
        public int questionId { get; set; }
        public int order { get; set; }
        public string questionTitle { get; set; }
        public List<QuizChoice> choices { get; set; }
        public bool isSingleResponseQuestion { get; set; }
    }

    public class QuizChoice
    {
        public int choiceId { get; set; }
        public string choiceTitle { get; set; }
        public int index { get; set; }
        public bool isCorrectAnswer { get; set; }
        public bool isChecked { get; set; }
        public string feedback { get; set; }
        public int selectedAnswer { get; set; }
    }

But the problem is that I can select several radiobuttons in a same group so I added this code to RadioButtonFor after the id:

@Name = "group" + i

But then I could not get the isChecked in my Model. What I am doing wrong here? How to resolve this problem? Thank you Best

Answer 1

To resolve the problem I added a field selectedChoiceId to my class QuizQuestion and used the RadioButtonFor as follow:

@Html.RadioButtonFor(m => m.questions[i].selectedChoiceId, ch.choiceId)

the 1st field of RadioButtonFor serves to group together the radio buttons so it should be the same for all radio buttons for a single question