public ActionResult Edit(int id)
        {
            if (id == 0)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);

            }
            if (ModelState.IsValid)
            {
                StudentDAO Student_DAO = new StudentDAO();
                return View(Student_DAO.GetStudenInfoForEditing(id));

            }
            else
            {
                ModelState.AddModelError("", "Sorry Student information is not found.");
                return View("SearchStudent");

            }
        }
        public ActionResult Edited(Student student)
        {
            if (ModelState.IsValid)
            {
                StudentDAO Student_DAO = new StudentDAO();
                Student_DAO.UpdateStudentInfoWithStudentId(student);
                return View(Student_DAO.GetStudenInfoForEditing(student.StudentId));

            }
            else
            {
                return View("Edit");
            }
        }