public JsonResult DeleteStudent(T_STUDENT student)
        {
            _db.usp_DeleteStudent(student.ID);
            var list = _db.usp_GetAllStudentData().ToList();

            return(Json(list, JsonRequestBehavior.AllowGet));
        }
        public JsonResult UpdateStudent(T_STUDENT student)
        {
            _db.usp_UpdateStudent(student.ID, student.FIRST_NAME, student.LAST_NAME, student.EMAIL,
                                  student.ADRESS, student.ENROLMENT_DATE, student.DEPARTMENT_ID);
            var list = _db.usp_GetAllStudentData().ToList();

            return(Json(list, JsonRequestBehavior.AllowGet));
        }