// GET: Attendance
        public async Task <ActionResult> Index()
        {
            List <Models.AttendanceMaster> list;

            //if (HttpContext.IsDebuggingEnabled)
            //    list = new List<AttendanceMaster>{
            //        new AttendanceMaster{Id=1, TimetableId=2, CourseId=1, CourseName="BBA", SemesterId=1, SemesterName="First Semester", ModuleId=1, ModuleName="Finance", AttendanceDate=DateTime.Parse("2019/01/22")},
            //        new AttendanceMaster{Id=3, TimetableId=2, CourseId=1, CourseName="BCA", SemesterId=1, SemesterName="First Semester", ModuleId=1, ModuleName="Finance", AttendanceDate=DateTime.Parse("2019/01/24")},
            //        new AttendanceMaster{Id=2, TimetableId=2, CourseId=1, CourseName="BBS", SemesterId=1, SemesterName="First Semester", ModuleId=1, ModuleName="Finance", AttendanceDate=DateTime.Parse("2019/01/23")},
            //    };
            //else
            list = await _repo.GetAttendanceList();

            return(View(list));
        }