public ActionResult AddClass(FormCollection form) // thêm lớp { if (!user.IsAdmin()) { return(View("Error")); } Model.UpdateLastSeen("Thêm Khóa", Url.Action("AddGrade")); string class_name = form["class_name"]; int id_speciality = Convert.ToInt32(form["id_speciality"]); int id_grade = Convert.ToInt32(form["id_grade"]); bool add = Model.AddClass(class_name, id_grade, id_speciality); if (add) { TempData["status_id"] = true; TempData["status"] = "Thêm Thành Công"; } else { TempData["status_id"] = false; TempData["status"] = "Thêm Thất Bại"; } return(RedirectToAction("ClassManager")); }