Twitter bootstrap 如何在下拉菜单中集成dropright菜单
在导航栏中,我有一个名为“指示器”的下拉菜单,它有以下项目:指示器1、指示器2、指示器3。在“指示器1”下,有两个选项我想显示为下拉菜单Twitter bootstrap 如何在下拉菜单中集成dropright菜单,twitter-bootstrap,drop-down-menu,bootstrap-4,Twitter Bootstrap,Drop Down Menu,Bootstrap 4,在导航栏中,我有一个名为“指示器”的下拉菜单,它有以下项目:指示器1、指示器2、指示器3。在“指示器1”下,有两个选项我想显示为下拉菜单 <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-e
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Indicators
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item dropdown-dropright" href="#">Indicator 1
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Option 1</a>
<a class="dropdown-item" href="#">Option 2</a>
</div>
</a>
<a class="dropdown-item" href="#">Indicator 2</a>
<a class="dropdown-item" href="#">Indicator 3</a>
</div>
</li>
我无法使它工作。您能分享一段代码片段,展示如何完成的示例吗?
.下拉子菜单{
位置:相对位置;
}
.下拉子菜单.下拉菜单{
排名:0;
左:100%;
页边顶部:-1px;
}
多级下拉列表
在本例中,我们为多级下拉菜单创建了一个.dropdown子菜单类(请参见上面的样式部分)
请注意,我们添加了jQuery以在单击时打开多级下拉列表(请参见下面的脚本部分)。
教程
-
-
$(文档).ready(函数(){
$('.dropdown子菜单a.test')。打开(“单击”,函数(e){
$(this.next('ul').toggle();
e、 停止传播();
e、 预防默认值();
});
});
<style>
.dropdown-submenu {
position: relative;
}
.dropdown-submenu .dropdown-menu {
top: 0;
left: 100%;
margin-top: -1px;
}
</style>
<div class="container">
<h2>Multi-Level Dropdowns</h2>
<p>In this example, we have created a .dropdown-submenu class for multi-level dropdowns (see style section above).</p>
<p>Note that we have added jQuery to open the multi-level dropdown on click (see script section below).</p>
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown">Tutorials
<span class="caret"></span></button>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">HTML</a></li>
<li><a tabindex="-1" href="#">CSS</a></li>
<li class="dropdown-submenu">
<a class="test" tabindex="-1" href="#">New dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">2nd level dropdown</a></li>
<li><a tabindex="-1" href="#">2nd level dropdown</a></li>
<li class="dropdown-submenu">
<a class="test" href="#">Another dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">3rd level dropdown</a></li>
<li><a href="#">3rd level dropdown</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<script>
$(document).ready(function(){
$('.dropdown-submenu a.test').on("click", function(e){
$(this).next('ul').toggle();
e.stopPropagation();
e.preventDefault();
});
});
</script>