public ActionResult delete(int id) {
     if (Session.getCurrentUser() == null)
         return Redirect("/admin/account/logon");
     if (!SercurityServices.HasPermission((int)TypeModule.MODULE_TINTUC, Session.getCurrentUser().username, TypeAudit.Delete))
     {
         return Redirect("/admin/error/error403");
     }
     gov_news newInfo = _cnttDB.gov_news.Find(id);
     if (newInfo != null)
     {
         try
         {
             _cnttDB.gov_news.Remove(newInfo);
             int rs = _cnttDB.SaveChanges();
             if (rs == 0)
                 return Redirect("/admin/error/error404");
             else {
                 var lucene = new LuceneSerives.LuceneNews();
                 lucene.ClearLuceneIndexRecord(id);
                 insertHistory(AccessType.xoaTinTuc, Constant.XOA(Constant.ITEM_TINTUC, Constant.ID, id.ToString()));
             }
         }
         catch (Exception ex)
         {
             return Redirect("/admin/error/error404");
         }
     }
     else
     {
         return Redirect("/admin/error/error405");
     }
     TempData["message"] = "Xóa thông tin thành công!";
     return Redirect("Index");
 }