bootstrap 多级联动下拉框

 

<!DOCTYPE HTML>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Bootstrap 3 的多级下拉菜单示例</title>
    <script type="text/javascript" src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
    <link rel="stylesheet" href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="external nofollow" />
    <script type="text/javascript" src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
    <style type="text/css">
  .dropdown-submenu {
   position: relative;
  }
  .dropdown-submenu > .dropdown-menu {
   top: 0;
   left: 100%;
   margin-top: -6px;
   margin-left: -1px;
   -webkit-border-radius: 0 6px 6px 6px;
   -moz-border-radius: 0 6px 6px;
   border-radius: 0 6px 6px 6px;
  }
  .dropdown-submenu:hover > .dropdown-menu {
   display: block;
  }
  .dropdown-submenu > a:after {
   display: block;
   content: " ";
   float: right;
   width: 0;
   height: 0;
   border-color: transparent;
   border-style: solid;
   border-width: 5px 0 5px 5px;
   border-left-color: #ccc;
   margin-top: 5px;
   margin-right: -10px;
  }
  .dropdown-submenu:hover > a:after {
   border-left-color: #fff;
  }
  .dropdown-submenu.pull-left {
   float: none;
  }
  .dropdown-submenu.pull-left > .dropdown-menu {
   left: -100%;
   margin-left: 10px;
   -webkit-border-radius: 6px 0 6px 6px;
   -moz-border-radius: 6px 0 6px 6px;
   border-radius: 6px 0 6px 6px;
  }
 </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="form-group">

            <input type="hidden" name="category_id" id="category_id" value="" />
            <div class="dropdown">
                <a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-white" data-target="#" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><span id="select-title">选择分类</span> <span class="caret"></span></a>
                <ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu">
                    <li><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="1" data-title="一级菜单">一级菜单</a></li>
                    <li class="dropdown-submenu">
                        <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="2" data-title="一级菜单">一级菜单</a>
                        <ul class="dropdown-menu">
                            <li><a data-index="2-1" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="二级菜单">二级菜单</a></li>
                        </ul>
                    </li>

                    <li class="dropdown-submenu">
                        <a tabindex="3" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="一级菜单">一级菜单</a>
                        <ul class="dropdown-menu">
                            <li><a tabindex="3-1" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="二级菜单">二级菜单</a></li>
                            <li class="divider"></li>
                            <li class="dropdown-submenu">
                                <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="3-2" data-title="二级菜单">二级菜单</a>
                                <ul class="dropdown-menu">
                                    <li><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="3-2-1" data-title="三级菜单">三级菜单</a></li>
                                </ul>
                            </li>
                        </ul>
                    </li>
                </ul>
            </div>

        </div>
    </div>
</div>
<script type="text/javascript">


$('.dropdown li a').click(function(){

 console.log(this);
 title = $(this).attr("data-title");
 id = $(this).attr("data-index");
 $("#select-title").text(title);
 $("#category_id").val(id);
})

</script>
</body>
</html>

 

 

参考:

https://www.jb51.net/article/128874.htm

https://www.cnblogs.com/stubborn-donkey/p/7248618.html

 

 

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