MVC4: Two radio buttons for a single boolean model property

Question

I'm attempting to find the correct Razor syntax for mutually exclusive radio buttons that both reflect the value of a boolean property on my model. My model has this:

public bool IsFemale{ get; set; }

I would like to display this with two radio buttons, one "Male" and the other "Female," but everything I've tried so far has not reflected the actual value of the IsFemale property on the model. Currently, I have this:

@Html.RadioButtonFor(model => model.IsFemale, !Model.IsFemale) Male
@Html.RadioButtonFor(model => model.IsFemale, Model.IsFemale) Female

This seems to persist the value correctly if I change and update, but does not mark the correct value as checked. I'm sure this is something stupid, but I'm stuck.

What is your app's culture? Are you using localized .net? Because I cannot repro your issue and because Darin's solution worked maybe this is some culture setting issue... — nemesv
I'm not currently setting the culture, so I assume it's using the machine default. — AJ.
Interesting... It's just strange because I'd also expect it work as you tried in fact it does in my repro... — nemesv

Darin Dimitrov Darin Dimitrov · Accepted Answer · 2012-05-09T14:47:42

Try like this:

@Html.RadioButtonFor(model => model.IsFemale, "false") Male
@Html.RadioButtonFor(model => model.IsFemale, "true") Female

And here's the full code:

Model:

public class MyViewModel
{
    public bool IsFemale { get; set; }
}

Controller:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(new MyViewModel
        {
            IsFemale = true
        });
    }

    [HttpPost]
    public ActionResult Index(MyViewModel model)
    {
        return Content("IsFemale: " + model.IsFemale);
    }
}

View:

@model MyViewModel

@using (Html.BeginForm())
{
    @Html.RadioButtonFor(model => model.IsFemale, "false", new { id = "male" }) 
    @Html.Label("male", "Male")

    @Html.RadioButtonFor(model => model.IsFemale, "true", new { id = "female" })
    @Html.Label("female", "Female")
    <button type="submit">OK</button>
}

MVC4: Two radio buttons for a single boolean model property

2 Answers