public ActionResult Login(AccountModel acc, string returnUrl) { // Nếu vượt qua được validation ở AccountModel var db = new QLDSVDbContext(); var model = db.AccountModels.Where(t => t.Username == acc.Username && t.Password == acc.Password).ToList().Count(); if (ModelState.IsValid) { if (model == 1) { FormsAuthentication.SetAuthCookie(acc.Username, true); return(RedirectTolocal(returnUrl)); } } return(View(acc)); }