//Json Methods.................................................................................
        public JsonResult StudentInfoByStdId(int studentId)
        {
            RegisterStudent student      = enrollCourseManager.StudentInfoByStdId(studentId);
            EnrollCourse    enrollCourse = new EnrollCourse()
            {
                Name       = student.Name,
                Email      = student.Email,
                Department = enrollCourseManager.GetDepartmentName(student.DepartmentId)
            };

            return(Json(enrollCourse));
        }