asp.net-mvc – Ajax重定向到页面而不是更新目标

我正在使用部分视图进行登录,并希望在成功时将用户重定向到新页面,如果模型无效,则在部分视图中显示验证错误. ajax目标正在更新并成功或失败.如果模型有效,它将在更新目标中显示整个新页面,但我希望它重定向到新页面.我已经尝试过Redirect和RedirecttoAction,但它没有获得所需的结果.任何有关我可以去的想法都会获得ajax更新以重定向到新页面,而不是更新目标.另外,如果我使用错误的方法,请告诉我.

部分查看代码：

<% using (Ajax.BeginForm(
        "LogOn",null,new AjaxOptions { 
            HttpMethod = "POST",UpdateTargetId = "SignInForm" 
        },new { 
            id = "SignInForm",ReturnUrl = Request.QueryString["ReturnUrl"] 
        })) { %>

                    <<Page HTML Controls>>

                    <input type="submit" value="Log On" />


            <% } %>

这是相关的控制器代码：

public ActionResult Logon(LogOnModel model,string returnUrl)
        {
            if (ModelState.IsValid)
            {
            //Login Logic Code        
            if (!String.IsNullOrEmpty(returnUrl))
                    {
                        return Redirect(returnUrl);
                    }
                    else
                    {
                        return RedirectToAction("Index","App");   
                    }

            }

            // If we got this far,something failed,redisplay form
            if (Request.IsAjaxRequest())
                           return PartialView("LogOnControl");

            return View(model);
        }

if (ModelState.IsValid)
{
    if (string.IsNullOrEmpty(returnUrl))
    {
        returnUrl = Url.Action("Index","App");
    }
    if (Request.IsAjaxRequest())
    {
        return Json(new { returnUrl = returnUrl });
    }
    return Redirect(returnUrl);
}

<% using (Ajax.BeginForm(
    "LogOn",new AjaxOptions { 
        HttpMethod = "POST",OnSuccess = "success" 
    },new { 
        id = "SignInForm",ReturnUrl = Request.QueryString["ReturnUrl"] 
    })) { %>
        <<Page HTML Controls>>
        <input type="submit" value="Log On" />
<% } %>

<script type="text/javascript">
function success(context) {
    var returnUrl = context.get_data().returnUrl;
    if (returnUrl) {
        window.location.href = returnUrl;
    } else {
        // TODO: update the target form element with the returned partial html
    }
}
</script>