public ActionResult EditSpeciality(string id) // sửa thông tin ngành(lấy thông tin cũ) { if (!user.IsAdmin()) { return(View("Error")); } int id_speciality = Convert.ToInt32(id); try { speciality speciality = Model.GetSpeciality(id_speciality); Model.UpdateLastSeen("Sửa Ngành " + speciality.speciality_name, Url.Action("EditSpeciality/" + id)); return(View(speciality)); } catch (Exception) { return(View("Error")); } }