public ActionResult SetGroupForStudent(Users users)
 {
     try
     {
         if (recordsDAO.AddGroupForStudent(users.Id, users.studgroupid))
         {
             return(RedirectToAction("Students"));
         }
         else
         {
             return(View("SetGroupForStudent", users));
         }
     }
     catch
     {
         return(View("Students"));
     }
 }