问ASP.Net MVC 3.0 Ajax.BeginForm正在重定向到页面吗？

EN

@using (Ajax.BeginForm("ActionName", "Controller", null, new AjaxOptions
           {
               HttpMethod = "POST",
               OnSuccess = "ShowResult"
           }, new { id = "myform" }))
{
    // All form Fields
    <input type="submit" value="Continue" class="button standard" />
}

public JsonResult ActionName(FormCollection collection)
{
    return Json(new { _status },JsonRequestBehavior.AllowGet);
}

<script type="text/javascript">
function ShowResult(data) {
   // alert("I am at ShowResult");
    if (data.isRedirect) {
        window.location.href = json.redirectUrl;
    }
}

<script src="@Url.Content("jquery.unobtrusive-ajax.min.js")"></script>

$("#myform").validate({
    submitHandler: function (form) {
   // my logic goes here....
 }});