<% Html.BeginForm("Login","Account",FormMethod.Post); %>

在该操作中,它测试用户名/密码有效性,如果无效,则将用户发回到登录页面,并显示凭证不正确的消息.

[HttpPost]
    public ActionResult Login(Loginviewmodel Model,string ReturnUrl)
    {
        User user = MembershipService.ValidateUser(Model.UserName,Model.Password);
        if (user != null)
        {
            //Detail removed here
            FormsService.SignIn(user.ToString(),Model.RememberMe);
            return Redirect(ReturnUrl);
        }
        else
        {
            ModelState.AddModelError("","The user name or password provided is incorrect.");
        }
        // If we got this far,something Failed,redisplay form
        return RedirectToAction("Index","Home");  // <-- Here is the problem.  ModelState is lost.
    }

但是这里的问题是：ValidationSummary总是空白的,因为我们在RedirectToAction中失去了Model.

所以问题是：如何在没有重定向的情况下将用户发送到不同控制器上的操作？