/// <summary>
        /// View selected & non-selected question for provided course & exam
        /// </summary>
        public ActionResult ManageQuestions(int examId, int courseId)
        {
            int userId = Utilities.GetInstance().GetCurrentUserId();

            //ExamQuestion examQuestion = db.ExamQuestions.Where(e => e.ExamId == examId & e.Exam.UserId == userId).FirstOrDefault();
            int[] _examQuestions = Utilities.GetInstance().GetExamQuestion(examId);
            ViewBag.ExamQuestions = _examQuestions; // new SelectList(_examQuestions, "Id", "QuestionText");

            ViewBag.ExamId    = examId;
            ViewBag.ExamTitle = db.Exam.Where(p => p.Id == examId).FirstOrDefault().Title;

            var cls = db.CourseClass.FirstOrDefault(p => p.Id == courseId);

            ViewBag.CourseTitle = cls.Title;

            ViewBag.Questions = new SelectList(QuestionRepo.GetInstance().GetQuestionByCourse(cls.CourseId), "Id", "QuestionText");
            return(View());
        }