public ActionResult DeleteResultConfirmed(int?IDKQ, int?IDQN)
        {
            if (IDKQ == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            KetQuaKiemTraModel model = new KetQuaKiemTraModel();

            model.DeleteResult(IDKQ);
            if (IDQN != null)
            {
                return(RedirectToAction("Details", new { id = IDQN }));
            }
            else
            {
                return(RedirectToAction("Index"));
            }
        }