* @param form The search form.
     */
    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "dataConfigItems", dataConfigService.getDataConfigList(dataConfigPager)); // page navi
        registerHandlerNames(data);

        // restore from pager
        copyBeanToBean(dataConfigPager, form, op -> op.include("name", "handlerName", "description"));
    }