Question

单击按钮使面板关闭，但是当我再次单击按钮时，面板将无法打开。

我已经检查以确保没有遗漏任何结束标记，并发现一切正常。

不确定我错过了什么。

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

<button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#myPanel" aria-expanded="false" aria-controls="myPanel">
    Collapse
  </button>

<div id="VIDContactInfoWrapper" style="border:1px solid black;">
  <div class="panel panel-default" style="height:inherit;">
    <div class="panel-heading" style="padding: 5px 5px !important">Information</div>
    <div class="panel-body" id="myPanel" style="padding-top:0;padding-bottom:0;height:300px; background-color:hotpink;">
      <div class="row">
        <div class="col-md-12">
          <div class="row">
            <div id="VIContactInfo" class="col-md-6" style="background: white;"></div>
            <div id="VIAddressInfo" class="col-md-6" style="background: white;"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

Answer 1

实际上，您必须将面板主体包裹在可折叠的div中。 https://getbootstrap.com/docs/3.3/javascript/#collapse

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

<button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#myPanel" aria-expanded="false" aria-controls="myPanel">
    Collapse
  </button>

<div id="VIDContactInfoWrapper" style="border:1px solid black;">
  <div class="panel panel-default" style="height:inherit;">
      <div class="panel-heading" style="padding: 5px 5px !important">Information</div>
  <div  id="myPanel" class="panel-collapse collapse in">
  <div class="panel-body" style="padding-top:0;padding-bottom:0;height:300px; background-color:hotpink;">
      <div class="row">
        <div class="col-md-12">
          <div class="row">
            <div id="VIContactInfo" class="col-md-6" style="background: white;"></div>
            <div id="VIAddressInfo" class="col-md-6" style="background: white;"></div>
          </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

Answer 2

您提供的代码可以正常工作。问题在于您正在使用内联样式定义panel-body元素的高度，当您使用Bootstrap切换时，该样式会被覆盖。要解决此问题，只需允许panel-body中的内容定义高度，或者改为在外部CSS中定义高度：

.panel-body {
  padding-top:0;
  padding-bottom:0;
  height:300px;
  background-color:hotpink;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>

<button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#myPanel" aria-expanded="false" aria-controls="myPanel">
    Collapse
  </button>

<div id="VIDContactInfoWrapper" style="border:1px solid black;">
  <div class="panel panel-default" style="height:inherit;">
    <div class="panel-heading" style="padding: 5px 5px !important">Information</div>
    <div class="panel-body" id="myPanel">
      <div class="row">
        <div class="col-md-12">
          <div class="row">
            <div id="VIContactInfo" class="col-md-6" style="background: white;"></div>
            <div id="VIAddressInfo" class="col-md-6" style="background: white;"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

折叠后，引导面板无法打开

2 个答案: