AjaxRadioList

It can be declared using the AjaxRadioList or AjaxRadioListFor helper like this:

@Html.Awe().AjaxRadioListFor(o => o.Meal) 
@Html.Awe().AjaxRadioList("Category") 

It requires a controller to get it's data from, this controller must have an action GetItems which will receive a "v" parameter with the current value, example:

public class CategoryAjaxRadioListController : Controller
{
    public ActionResult GetItems(int? v)
    {
        return Json(Db.Categories.Select(o => new SelectableItem(o.Id, o.Name, v == o.Id)));
    }
}