asp.net mvc 4 - MVC foolproof validations with mvc4 -

i have tried use requiredif , requirediftrue, both not working. below code. when make value of ismedicalinsurance true/false, both other does'nt work.

[required(errormessage="please update medical insurance")]     public bool? ismedicalinsurance { set; get; }   [requiredif("ismedicalinsurance", true, errormessage = "enter primary insuracne name")]     public string primaryinsurance { set; get; }  [requirediftrue("ismedicalinsurance", errormessage = "enter id number")]      public string idnumber { set; get; } 

view code.

<label class="radio-inline"> @html.radiobuttonfor(m => m.ismedicalinsurance, true, new { id="rdhaveinsur"}) yes   </label> <label class="radio-inline">   @html.radiobuttonfor(m => m.ismedicalinsurance, false, new { id="rdhaveno"})no   @html.validationmessagefor(m => m.ismedicalinsurance)  </label>   <div class="col-sm-7">   @html.textboxfor(m => m.primaryinsurance, new { @class = "form-control", id =  "txtinsurance" }) @html.validationmessagefor(m => m.primaryinsurance) </div>  <div class="col-sm-7">  @html.textboxfor(m => m.idnumber, new { @class = "form-control", id = "txtidnumber" })  @html.validationmessagefor(m => m.idnumber)  </div> 

why need have ismedicalinsurance nullable since value either true of false , shouldn't null? have try code , working ismedicalinsurance change bool instead of bool

update

have loaded below scripts?

@scripts.render("~/bundles/jquery") @scripts.render("~/bundles/jqueryval") @scripts.render("~/scripts/mvcfoolproof.unobtrusive.min.js")