public ActionResult Login(string UserNum, string UserPassword) { Tuple <int, bool> u = dao.FindUserByLogin(UserNum, UserPassword); if (u != null) { if (u.Item2) { // is student Student student = dao.FindStudentById(u.Item1); if (student != null) { Session["student"] = student; } } else { // is staff return(RedirectToAction("Index", "Staff")); } } return(RedirectToAction("Index", "Home")); }