多级下拉式Bootsrap

Question

我已经尝试过Multi-Level Drop Down了。当我有2个或更多下拉子菜单。当我点击第一个下拉列表然后我点击另一个下拉列表时，第一个下拉列表仍然打开。我希望当我点击第二个下拉列表时，第一个下拉列表将关闭，或者当我点击下拉列表时，所有子下拉列表将关闭。

if (cluster.isMaster) {
  cron.schedule('*/1 * * * *', function() {
     //CRON JOB
  })

  // continue initializing workers here
}

Answer 1

你可以使用CSS，jQuery addClass('active')＆amp;在CSS中toggleClass('active')，你必须为所有dropmenu {/ 1>} display: none;

你去吧

$(document).ready(function(){
  $('.dropdown-submenu a.test').on("click", function(e){
    $(this).next('ul').toggle();
    e.stopPropagation();
    e.preventDefault();
  });
});

$(function () {
$('#drop1').on('click', function(){
		$('.dropmenu1').toggleClass('active');
    $('.dropmenu2').removeClass('active');
});

$('#drop2').on('click', function(){
		$('.dropmenu1').removeClass('active');
	$('.dropmenu2').toggleClass('active');
});

$('#drop3').on('click', function(){
		$('.dropmenu3').toggleClass('active');
});

$('#drop4').on('click', function(){
		$('.dropmenu4').toggleClass('active');
});
$('#button-t').on('click', function(){
		$('.dropmenu1').removeClass('active');
		$('.dropmenu2').removeClass('active');
		$('.dropmenu3').removeClass('active');
		$('.dropmenu4').removeClass('active');
});
});

.dropdown-submenu {
    position: relative;
}

.dropdown-submenu .dropdown-menu {
    top: 0;
    left: 100%;
    margin-top: -1px;
}
ul.dropdown-menu ul.dropdown-menu{
  display:none !important;
}
ul.dropdown-menu ul.dropdown-menu.active{
  display:block !important;
}
ul.dropdown-menu ul

 <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>

<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" id="button-t">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="#" id="drop1"> New dropdown 1 <span class="caret"></span></a>
        <ul class="dropdown-menu dropmenu1">
          <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="#" id="drop3">Another dropdown <span class="caret"></span></a>
            <ul class="dropdown-menu dropmenu3">
              <li><a href="#">3rd level dropdown</a></li>
              <li><a href="#">3rd level dropdown</a></li>
            </ul>
          </li>
        </ul>
      </li>
      <li class="dropdown-submenu" >
        <a class="test" tabindex="-1" href="#" id="drop2">New dropdown 2 <span class="caret"></span></a>
        <ul class="dropdown-menu dropmenu2">
          <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="#" id="drop4">Another dropdown <span class="caret"></span></a>
            <ul class="dropdown-menu dropmenu4">
              <li><a href="#">3rd level dropdown</a></li>
              <li><a href="#">3rd level dropdown</a></li>
            </ul>
          </li>
        </ul>
      </li>
    </ul>
  </div>
</div>