public ActionResult Index(Login model) { if (!ModelState.IsValid) { return(View(model)); } else { string loginStatus = CustomMembershipProvider.ValidateUserActiveDirectory(model.Name, model.Password); if (loginStatus == LoginStatus.OK) { FormsAuthentication.RedirectFromLoginPage(model.Name, false); return(RedirectToAction("Index", "Home")); } else { ViewBag.message = loginStatus; return(View(model)); } } }