【问题标题】:How to select bootstrap dropdown menu?如何选择引导下拉菜单?
【发布时间】:2018-04-18 14:25:16
【问题描述】:

我想在顶部(下拉标题)中显示选定的下拉菜单。当它们在列表中时,我可以在标题中显示所选项目。我会关注

        <li class="dropdown"><a class="dropdown-toggle toggle2" data-toggle="dropdown" href="#">Meterial Type <span class="caret"></span></a>
          <ul class="dropdown-menu menu2">
        <li><a href="#">Wood</a></li>
        <li><a href="#">Mud</a></li>
        <li><a href="#">Cloth</a></li>
        <li><a href="#">Thread</a></li>
        <li><a href="#">Jute</a></li>
        <li><a href="#">Cotton</a></li>
        <li><a href="#">Cane</a></li>
        <li><a href="#">Bamboo</a></li>
          </ul>
        </li>
        <li>

             <script>

$(function(){

    $(".menu2 li a").click(function(){

      $(".toggle2").text($(this).text());

   });

});
</script>

但是,我在 div 的下拉菜单中尝试此操作,但失败了。

        <div class="dropdown-menu menu2" aria-labelledby="navbarDropdown2">
          <a class="dropdown-item" href="#">Mud</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Cloth</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Thread</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Jute</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Cotton</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Cane</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Bamboo</a>
        </div>
      </li>


             <script>

$(function(){

    $(".menu2 li a").click(function(){

      $(".navbarDropdown2").text($(this).text());

   });

});
</script>

我使用引导程序 4.1。我关注getbootstrap documentation

【问题讨论】:

    标签: drop-down-menu


    【解决方案1】:
    <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle toggle2" href="#" id="navbarDropdown2" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
              Object Type
            </a>
    
            <div class="dropdown-menu menu2" aria-labelledby="navbarDropdown2">
              <a class="dropdown-item" href="#">Mud</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Cloth</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Thread</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Jute</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Cotton</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Cane</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Bamboo</a>
            </div>
          </li>
    
    
                 <script>
    
    $(function(){
    
        $(".menu2 li a").click(function(){
    
          $(".toggle2").text($(this).text());
    
       });
    
    });
    </script>
    

    【讨论】:

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