javascript - 如何一次打开所有Bootstrap Accordion 选项卡

我有以下Accordian，并希望允许用户使用jQuery单击按钮即可展开所有Accordian选项卡。

我尝试过使用此方法（https://codepen.io/dikuw/pen/KgzvJp），但是手风琴位于Kendo自定义编辑模板弹出窗口中，而不是展开所有面板，它只是切换了第一和第二面板的打开。

<div class="panel-group" id="accordion-demo" role="tablist" aria-multiselectable="true">
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingOne">
                        <h4 class="panel-title">
                            <a role="button" class="panel-title" data-toggle="collapse" data-parent="#accordion-demo" href="#prerequisites" aria-expanded="true" aria-controls="prerequisites">
                                Collapsible Group Item #1
                            </a>
                        </h4>
                    </div>
                    <div id="prerequisites" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="prerequisites">
                        <div class="panel-body">
                            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                        </div>
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingTwo">
                        <h4 class="panel-title">
                            <a class="collapsed panel-title" role="button" data-toggle="collapse" data-parent="#accordion-demo" href="#addwizard" aria-expanded="false" aria-controls="addwizard">
                                Collapsible Group Item #2
                            </a>
                        </h4>
                    </div>
                    <div id="addwizard" class="panel-collapse collapse" role="tabpanel" aria-labelledby="addwizard">
                        <div class="panel-body">
                            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                        </div>
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-heading" role="tab" id="headingThree">
                        <h4 class="panel-title">
                            <a class="collapsed panel-title" role="button" data-toggle="collapse" data-parent="#accordion-demo" href="#adjusthtml" aria-expanded="false" aria-controls="adjusthtml">
                                Collapsible Group Item #3
                            </a>
                        </h4>
                    </div>
                    <div id="adjusthtml" class="panel-collapse collapse" role="tabpanel" aria-labelledby="adjusthtml">
                        <div class="panel-body">
                            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                        </div>
                    </div>
                </div>
            </div>

        </div>
    </div>

最佳答案

$('.closeall').click(function () {
          $('.collapse').collapse('hide');
});


  $('.openall').click(function () {
        $('.collapse').collapse('show');
  });

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" >

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

 <a class="btn btn-primary openall" href="#">open all</a> <a class="btn btn-danger closeall" href="#">close all</a>
<hr>

<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingOne">
      <h4 class="panel-title">
        <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="false" aria-controls="collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingOne">
      <div class="panel-body">
        #1 Expanded
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingTwo">
      <h4 class="panel-title">
        <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
          Collapsible Group Item #2
        </a>
      </h4>
    </div>
    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">
      <div class="panel-body">
          #2 Expanded
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingThree">
      <h4 class="panel-title">
        <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Collapsible Group Item #3
        </a>
      </h4>
    </div>
    <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree">
      <div class="panel-body">
         #3 Expanded
      </div>
    </div>
  </div>
</div>