How to save selected radio button value in MVC4 - asp.net-mvc-4

Question

I am working in MVC4.In this I am using the following code for radio buttons :
Model :
public class PlatInspHistoryModels
{
public List<RadioButtonItem> RadioButtonList { get; set; }
public string SelectedRadioButton { get; set; }
}
public class RadioButtonItem
{
public string Name { get; set; }
public bool Selected { get; set; }
public string Value { get; set; }
public bool Visible { get; set; }
}
controller :
public ActionResult Index()
{
var viewModel = new PlatInspHistoryModels
{
RadioButtonList = new List<RadioButtonItem>
{
new RadioButtonItem
{
Name = "Topside", Value = "T",Selected = true,Visible = true
},
new RadioButtonItem
{
Name="Underwater", Value = "U",Selected = false,Visible = true
}
}
};
return View(viewModel);
}
View :
#using (Html.BeginForm("Index", "PlatInspHistory", FormMethod.Post, new { id = "form" }))
{
<table cellpadding="4" cellspacing="4">
<tr>
<td>
foreach (Cairs2.Models.RadioButtonItem item in Model.RadioButtonList)
{
#Html.DisplayFor(i => item.Name)
#Html.RadioButton("PlatInspHistoryModels.SelectedRadioButton", item.Value, item.Selected, new { #class = "formCheckbox", tabindex = "1" })
}
</td>
</tr>
</table>
}
Problem :
From the above code I am able to bind radio buttons as a list. But how I can get selected radio value on save event given below :
[HttpPost]
public ActionResult Index(PlatInspHistoryModels model)
{
}

Answer 1

Replace your foreach loop with this with a for loop and use strongly typed helpers:
for (var i = 0; i < Model.RadioButtonList.Count; i++)
{
#Html.DisplayFor(x => x.RadioButtonList[i].Name)
#Html.HiddenFor(x => x.RadioButtonList[i].Name)
#Html.RadioButtonFor(x => x.SelectedRadioButton, Model.RadioButtonList[i].Value, new { #class = "formCheckbox", tabindex = "1" })
}

Answer 2

I am working in MVC5, i have mcqs questions in the form of radio buttons that are randomly fetched from database here is my`[Table("Mcqs")]
public class MCQS
{ [Key]
public int Qid { get; set; }
[Required(ErrorMessage = "Please Enter Skill.")]
public string Skill { get; set; }
[Required(ErrorMessage = "Please Enter Question.")]
public string Question { get; set; }
[Required(ErrorMessage = "Please Enter Level.")]
public string Levels { get; set; }
[Required(ErrorMessage = "Please Enter Options.")]
public string AnsOpt1 { get; set; }
[Required(ErrorMessage = "Please Enter Options.")]
public string AnsOpt2 { get; set; }
[Required(ErrorMessage = "Please Enter Options.")]
public string AnsOpt3 { get; set; }
[Required(ErrorMessage = "Please Enter Options.")]
public string AnsOpt4 { get; set; }
[Required(ErrorMessage = "Please Set Weightage.")]
and controller
public ActionResult Index()
{ return View((from a in ne.Mcqs orderby Guid.NewGuid() select a).Take(2).ToList()); }
and view
#foreach (var item in Model)
{<tr>
<td>
#Html.DisplayFor(modelItem=>item.Qid)</td>
<td> #Html.DisplayFor(modelItem => item.Question)</td> <td>
#Html.RadioButton("skillsq1", new { id = "1"}).
#Html.DisplayFor(modelItem => item.AnsOpt1)</td><td>
#Html.RadioButton("skillsq1", new { id = "2"})
#Html.DisplayFor(modelItem => item.AnsOpt2) </td><td>
#Html.RadioButton("skillsq1", new { id = "3" })
#Html.DisplayFor(modelItem => item.AnsOpt3) </td> <td>
#Html.RadioButton("skillsq1", new { id = "4" })
#Html.DisplayFor(modelItem => item.AnsOpt4) </td> </tr>}
i want to ask that how i get the value of the checked radio button of the shuffled question