try{
                view_v_dm_black_list();
            }
            catch (Exception v_e){
                CSystemLog_301.ExceptionHandle(v_e);
            }
        }

        private void remove_v_dm_black_list()
        {
            if (!HelpUtils.is_validated_edit_grid_row(m_fg.Row, m_fg)) return;
            if (!BaseMessages.MsgBox_Confirm(THONG_BAO.CF_REMOVE_BLACKLIST))  return;
            US_V_DM_BLACK_LIST v_us = new US_V_DM_BLACK_LIST();
            grid2us_object(v_us, m_fg.Row);
            try {
                v_us.BeginTransaction();
                CAddRemoveBlackListData v_add_bl_data = new CAddRemoveBlackListData();
                v_add_bl_data = CallCenterUtils.add_remove_blacklist(v_us.strSO_DIEN_THOAI, 20);
                if (v_add_bl_data.Status == TRANG_THAI_GOI_WS.THAT_BAI)
                {
                    BaseMessages.MsgBox_Infor(THONG_BAO.ER_REMOVE_BLACKLIST_KO_THANH_CONG);
                    HelpUtils.ghi_log_he_thong(LOG_TRUY_CAP.REMOVE_BLACKLIST, "BLACK_LIST", "Remove blacklist: " + m_us.strSO_DIEN_THOAI, "Error");
                    return;
                }
                v_us.dcID_NGUOI_REMOVE = CAppContext_201.getCurrentUserID();
                v_us.Update();
                HelpUtils.ghi_log_he_thong(LOG_TRUY_CAP.REMOVE_BLACKLIST, "BLACK_LIST", "Remove blacklist: " + m_us.strSO_DIEN_THOAI, "Remove");
                BaseMessages.MsgBox_Infor(THONG_BAO.SC_REMOVE_BLACKLIST_THANH_CONG);