public ActionResult Delete(int id)
 {
     if (Session.getCurrentUser() == null)
         return Redirect("/admin/account/logon");
     if (!SercurityServices.HasPermission((int)TypeModule.MODULE_HOIDAP, Session.getCurrentUser().username, TypeAudit.QuestionCategory))
     {
         return Redirect("/admin/error/error403");
     }
     QuestionCategoryServices serives = new QuestionCategoryServices();
     try
     {
         int rs = serives.delete(id);
     }
     catch (Exception ex)
     {
         return Redirect("/admin/error/error404");
     }
     return Redirect("Index");
 }