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javascript - Bootstrap 4 - 当我点击其中的选项卡时下拉消失

转载 作者：行者123 更新时间：2023-11-28 15:02:52 26 4
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您好，我正在使用 bootstrap 4，并且我已成功将导航选项卡添加到下拉列表中。当我点击选项卡时，下拉菜单被隐藏了。我试过 this ，虽然，我无法达到结果。当我单击下拉菜单中的选项卡时，如何防止下拉菜单隐藏。请帮我。提前谢谢你。

<!DOCTYPE html>
<html lang="en">

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
  <link rel="stylesheet" type="text/css" href="fontawesome-5.0.9/web-fonts-with-css/css/fontawesome-all.min.css">
</head>

<body>

  <nav class="navbar navbar-expand-lg navbar-light bg-light">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

    <div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav mr-auto">

        <li class="nav-item dropdown">
          <a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown">Link<span class="sr-only">(current)</span></a>

          <div class="dropdown-menu dropdown-menu-left dropdown-menu-tip-ne recent-projects" aria-labelledby="navbarDropdown" style="width:350px">
            <nav>
              <div class="nav nav-tabs" id="nav-tab" role="tablist">
                <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
                <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
                <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
              </div>
            </nav>
            <div class="tab-content" id="nav-tabContent">
              <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">profile....</div>
              <div class="tab-pane fade" id="nav-profile" role="tabpanel" aria-labelledby="nav-profile-tab">home.....</div>
              <div class="tab-pane fade" id="nav-contact" role="tabpanel" aria-labelledby="nav-contact-tab">contact.....</div>
            </div>
          </div>
        </li>

      </ul>
    </div>
  </nav>

</body>

</html>

最佳答案

最后我从 this 找到了解决方案.

$('.dropdown-menu').on('click', function(event) {
  var events = $._data(document, 'events') || {};
  events = events.click || [];
  for (var i = 0; i < events.length; i++) {
    if (events[i].selector) {

      //Check if the clicked element matches the event selector
      if ($(event.target).is(events[i].selector)) {
        events[i].handler.call(event.target, event);
      }

      // Check if any of the clicked element parents matches the 
      // delegated event selector (Emulating propagation)
      $(event.target).parents(events[i].selector).each(function() {
        events[i].handler.call(this, event);
      });
    }
  }
  event.stopPropagation(); //Always stop propagation
});
<!DOCTYPE html>
<html lang="en">

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
  <link rel="stylesheet" type="text/css" href="fontawesome-5.0.9/web-fonts-with-css/css/fontawesome-all.min.css">
</head>

<body>

  <nav class="navbar navbar-expand-lg navbar-light bg-light">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

    <div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav mr-auto">

        <li class="nav-item dropdown">
          <a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown">Link<span class="sr-only">(current)</span></a>

          <div class="dropdown-menu dropdown-menu-left dropdown-menu-tip-ne recent-projects" aria-labelledby="navbarDropdown" style="width:350px">
            <nav>
              <div class="nav nav-tabs" id="nav-tab" role="tablist">
                <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
                <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
                <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
              </div>
            </nav>
            <div class="tab-content" id="nav-tabContent">
              <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">profile....</div>
              <div class="tab-pane fade" id="nav-profile" role="tabpanel" aria-labelledby="nav-profile-tab">home.....</div>
              <div class="tab-pane fade" id="nav-contact" role="tabpanel" aria-labelledby="nav-contact-tab">contact.....</div>
            </div>
          </div>
        </li>

      </ul>
    </div>
  </nav>

</body>

</html>

关于javascript - Bootstrap 4 - 当我点击其中的选项卡时下拉消失，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49876671/

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