Bootstrap Multiselect下拉列表不可见

Question

Despite the fact that I can make this bootstrap-multiselect work in independent file, I'm not able to see the dropdown list once I click on caret, even if I included it in portal files. 尽管我可以使该bootstrap-multiselect在独立文件中工作，但是即使单击了插入符号，即使将其包含在门户网站文件中，也无法看到下拉列表。

I have already used bootstrap-datepicker, datetimepicker, chosen, and backbone.js 我已经使用了bootstrap-datepicker，datetimepicker，selected和bone.js

This is the line which is supposed to do the trick 这是应该做的trick俩

$('.insightList').multiselect({
            selectAllText: true
});

Does anyone have an idea of what can be the cause for not adding class 'open' for 'btn-group'? 有谁知道为什么不为“ btn-group”添加类“ open”的原因是什么？

![On click also there is only btn-group class for div whether it should add open class][1] Thanks in advance ！[在单击时，div也只有btn-group类，是否应该添加开放类] [1]预先感谢

Answer 1

I've just created a jsbin to solve your problem Working demo . 我刚刚创建了一个jsbin来解决您的问题，工作演示。

在此处输入图片说明

    <!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery.min.js"></script>
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" type="text/css" />
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>

<script type="text/javascript" src="http://davidstutz.github.io/bootstrap-multiselect/dist/js/bootstrap-multiselect.js"></script>
<link rel="stylesheet" href="http://davidstutz.github.io/bootstrap-multiselect/dist/css/bootstrap-multiselect.css" type="text/css"/>

  <meta charset="utf-8">
  <title>Example by @Bneiluj</title>
</head>
<body>

  <select id="insightList" multiple="multiple">
    <optgroup label="Group 1">
      <option value="1-1">Option 1.1</option>
      <option value="2-1">Option 2.1</option>
      <option value="2-2">Option 2.2</option>
      <option value="2-3">Option 2.3</option>
    </optgroup>
  </select>

<script id="example">
$('#insightList').multiselect({
  enableClickableOptGroups: true
});
</script>

Please, let me know if you have any question. 请让我知道是否有任何问题。

Answer 2

Make sure your HTML structure for the dropdown is as follows: 确保下拉菜单的HTML结构如下：

<select id="example-selectAllText" multiple="multiple" style="display: none;">
 <option value="1">Option 1</option>
 <option value="2">Option 2</option>
 <option value="3">Option 3</option>
 <option value="4">Option 4</option>
 <option value="5">Option 5</option>
 <option value="6">Option 6</option>
</select>
<div class="btn-group"><button type="button" class="multiselect dropdown-toggle btn btn-default" data-toggle="dropdown" title="None selected" aria-expanded="false"><span class="multiselect-selected-text">None selected</span> <b class="caret"></b></button><ul class="multiselect-container dropdown-menu"><li class="multiselect-item multiselect-all"><a tabindex="0" class="multiselect-all"><label class="checkbox"><input type="checkbox" value="multiselect-all"> Check all!</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="1"> Option 1</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="2"> Option 2</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="3"> Option 3</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="4"> Option 4</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="5"> Option 5</label></a></li><li><a tabindex="0"><label class="checkbox"><input type="checkbox" value="6"> Option 6</label></a></li></ul></div>

$('#example-selectAllText').multiselect({
  includeSelectAllOption: true,
  selectAllText: 'Check all!'
});

Answer 3

This is the simple multi select am trying to build with the same bootstrap multiselect I have loaded all the necessary jquery and css but still it shows a select box displaying all the options it has not as proposed in above solution. 这是尝试使用相同的引导多重选择构建的简单多重选择，我已经加载了所有必需的jquery和css，但仍然显示一个选择框，其中显示了所有未按上述解决方案提出的选项。

<select id="multi-select" name="field" multiple="multiple" >
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
  </select>
 <!-- initialize multiselect -->
<script>
   $(document).ready(function() {
        $('#mult-select').multiselect();
    });
</script><!-- //ends-->

Answer 4

Check the Occurrence of the 检查是否发生

Bootstrap.js Bootstrap.js
Bootstrap-select.js Bootstrap-select.js
Bootstrap-multiselect.js Bootstrap-multiselect.js

if one of them exist more then 1 times then the dropdown will not displayed 如果其中一个存在超过1次，则不会显示下拉菜单

Bootstrap Multiselect下拉列表不可见

问题描述

4 个解决方案

解决方案1
2 2015-06-01 10:03:57

解决方案2
1 2015-06-01 10:19:29

解决方案3
1 2015-12-01 05:20:20

解决方案4
1 2018-06-29 06:26:59

Bootstrap Multiselect下拉列表不可见

问题描述

4 个解决方案

解决方案1 2 2015-06-01 10:03:57

解决方案2 1 2015-06-01 10:19:29

解决方案3 1 2015-12-01 05:20:20

解决方案4 1 2018-06-29 06:26:59

解决方案1
2 2015-06-01 10:03:57

解决方案2
1 2015-06-01 10:19:29

解决方案3
1 2015-12-01 05:20:20

解决方案4
1 2018-06-29 06:26:59