//
        // GET: /RollCall/Create

        public ActionResult Create()
        {
            //Mac dinh, majorID la 1
            int MajorID = 1;

            //Them 1 cai ID cua instructor
            ViewBag.InstructorID = SlFactory.MakeSelectList <Instructor>("InstructorID", "FullName");
            ViewBag.MajorID      = SlFactory.MakeSelectList <Major>("MajorID", "FullName", MajorID);
            ViewBag.ClassID      = new SelectList(ClaBO.GetClassByMajor(MajorID),
                                                  "ClassID", "ClassName");
            //Mac dinh, lay semester moi nhat
            List <Semester> semester = SeBO.GetList().Where(s => s.EndDate > DateTime.Now).ToList();

            ViewBag.SemesterID = semester;
            ViewBag.SubjectID  = new SelectList(SubBO.GetSubjectByMajor(MajorID), "SubjectID", "FullName");
            return(View());
        }