public ActionResult Login(t_admin user)
        {
            BAEntities usersEntities = new BAEntities();
            int?       userId        = usersEntities.ValidateUser(user.email, user.password).FirstOrDefault();

            string message = string.Empty;

            switch (userId.Value)
            {
            case -1:
                message = "Username and/or password is incorrect.";
                break;

            case -2:
                message = "Account has not been activated.";
                break;

            default:
                FormsAuthentication.SetAuthCookie(user.email, user.RememberMe);
                return(RedirectToAction("Index", "Admin"));
            }

            ViewBag.Message = message;
            return(View(user));
        }