try {
            final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.JSON,
                    request.getLocale() == null ? Locale.ROOT : request.getLocale());
            buf.append("\"record_count\":");
            buf.append(labelTypeItems.size());
            if (!labelTypeItems.isEmpty()) {
                buf.append(',');

     *
     * @param data the render data
     * @param form the search form
     */
    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "labelTypeItems", labelTypeService.getLabelTypeList(labelTypePager)); // page navi

        // restore from pager
        copyBeanToBean(labelTypePager, form, op -> op.include("name", "value"));
    }