public ActionResult Login(LoginViewModel model, string returnUrl) { if (ModelState.IsValid) { if (authentication.Authenticate(model.UserName, model.Password)) { FormsAuthentication.SetAuthCookie(model.UserName, false); return(Redirect(returnUrl ?? Url.Action("Index", "Admin"))); } else { ModelState.AddModelError("", "Incorrect user name or password"); return(View(model)); } } return(View(model)); }