我有很多过滤器可以在我的商店中展示产品。我正在使用bootstrap-select设置过滤器的样式(下拉列表)。
当我更改过滤器值时,如果该组合没有可用结果,其他过滤器将自动隐藏选项。
问题是,现在有一个重新过滤器,显示没有任何可用选项可供选择。在这种情况下,我想完全隐藏筛选器。
如果有可用选项,则代码如下所示:
<div class="form-group ">
<label>Serie</label>
<div class="btn-group bootstrap-select show-tick js-wpv-filter-trigger form-control open"><button type="button" class="btn dropdown-toggle bs-placeholder btn-dropdown btn-default" data-toggle="dropdown" role="button" data-id="wpv_control_select_wpcf-serie" title="Bitte wählen..." aria-expanded="true">
<span class="filter-option pull-left">Bitte wählen...</span>
<span class="bs-caret">
<span class="caret"></span>
</span>
</button>
<div class="dropdown-menu open" role="combobox">
<ul class="dropdown-menu inner" role="listbox" aria-expanded="true">
<li data-original-index="0"><a tabindex="0" class="" data-tokens="null" role="option" aria-disabled="false" aria-selected="false"><span class="text">D-9</span><span class="fontawesome fa fa-check check-mark"></span></a></li>
</ul>
</div>
<label class="custom-select">
<select id="wpv_control_select_wpcf-serie" name="wpv-wpcf-serie[]" class="selectpicker js-wpv-filter-trigger form-control" multiple="multiple" tabindex="-98">
<option value="D-9">D-9</option>
</select>
<span></span>
</label>
</div>
</div>
如果没有可用的选项,则代码如下所示:
<div class="form-group">
<label>Passend für Helm</label>
<div class="btn-group bootstrap-select show-tick js-wpv-filter-trigger form-control open">
<button type="button" class="btn dropdown-toggle bs-placeholder btn-dropdown btn-default" data-toggle="dropdown" role="button" data-id="wpv_control_select_wpcf-kompatibilitat-extern-mechanisch" title="Bitte wählen..." aria-expanded="true">
<span class="filter-option pull-left">Bitte wählen...</span>
<span class="bs-caret">
<span class="caret"></span>
</span>
</button>
<div class="dropdown-menu open" role="combobox">
<ul class="dropdown-menu inner" role="listbox" aria-expanded="true"></ul>
</div>
<label class="custom-select">
<select id="wpv_control_select_wpcf-kompatibilitat-extern-mechanisch" name="wpv-wpcf-kompatibilitat-extern-mechanisch[]" class="selectpicker js-wpv-filter-trigger form-control" multiple="multiple" tabindex="-98">
</select>
<span></span>
</label>
</div>
</div>
我的目标是在子.hide-filter
没有.form-group
的情况下向.dropdown-menu
添加类li
答案 0 :(得分:1)
尝试下面的代码,您可以在其中迭代每个表单组,并查找其中是否包含没有li的下拉列表。
$(function(){
$('.form-group').each(function(){
var $dropdown = $(this).find('.dropdown-menu');
if($dropdown.find('li').length==0) {
$(this).addClass('hide-filter');
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<div class="form-group">
<label>Passend für Helm</label>
<div class="btn-group bootstrap-select show-tick js-wpv-filter-trigger form-control open"><button type="button" class="btn dropdown-toggle bs-placeholder btn-dropdown btn-default" data-toggle="dropdown" role="button" data-id="wpv_control_select_wpcf-kompatibilitat-extern-mechanisch" title="Bitte wählen..." aria-expanded="true"><span class="filter-option pull-left">Bitte wählen...</span> <span class="bs-caret"><span class="caret"></span></span></button>
<div
class="dropdown-menu open" role="combobox">
<ul class="dropdown-menu inner" role="listbox" aria-expanded="true"></ul>
</div><label class="custom-select"><select id="wpv_control_select_wpcf-kompatibilitat-extern-mechanisch" name="wpv-wpcf-kompatibilitat-extern-mechanisch[]" class="selectpicker js-wpv-filter-trigger form-control" multiple="multiple" tabindex="-98"></select><span></span></label></div>
</div>
答案 1 :(得分:1)
这是另一种方法:
$( document ).ready(function() {
if($( ".dropdown-menu.inner:has(li)" ).length == 0){
$( ".form-group" ).addClass( "hide-filter" );
}
});