如何在MVC上验证单选按钮？

Question

我正在使用客户端验证，考虑到我正在制作表单，它开始变得混乱。通过所有文本框和单选按钮验证，控制器将不堪重负。如何验证和显示MODEL侧的MVC中的单选按钮和多个文本框的错误消息？

我所拥有的简化版本。

... MODEL

public class ModelData
{
    public string ContactName { get; set; }
    public string ContactAddress { get; set; }
    public string ContactPhone { get; set; }
    public bool RadioPoliceFire { get; set; }
    public bool RadioComplaint { get; set; }

    //The following is a Failure :(
    public string RadioType
    {
        if (RadioType == null)
            {return "Type Required";}
        return null;
    }
    //End Failure
}

CONTROLLER ......

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Info(ModelData InfoData)
{
    if (infoData.RadioType == null)
        {ModelState.AddModelError("RadioType", "Type Required");}
    try
    { ...
         return RedirectToAction("Confirmation");
    catch
    {ModelState.AddModelError("RadioComplaint", "Error");}
}

Answer 1

我喜欢DataAnnotations validation http://www.asp.net/learn/mvc/tutorial-39-cs.aspx或MVC 2 http://weblogs.asp.net/scottgu/archive/2010/01/15/asp-net-mvc-2-model-validation.aspx

BTW IsRadioButtonChecked应该是bool。