Bootstrap-Select

http://silviomoreto.github.io/bootstrap-select/

  <select id="basic2" class="show-tick form-control" multiple>
            <option>cow</option>
            <option>bull</option>
            <option class="get-class" disabled>ox</option>
            <optgroup label="test" data-subtext="another test">
                <option>ASD</option>
                <option selected>Bla</option>
                <option>Ble</option>
            </optgroup>
        </select>

<script type="text/javascript">
    $(document).ready(function(){
        $("#basic2").selectpicker({
            liveSearch: true,
            maxOptions: 1
        });

    })
    
</script>

Js设置选中

    $('#Customer').selectpicker('val', '0');
    $('#Customer').selectpicker('refresh');