public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            dataConfigPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            dataConfigPager.setCurrentPageNumber(0);
        });
        return asHtml(path_AdminDataconfig_AdminDataconfigJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }