javascript - Bootstrap 下拉菜单在菜单项上单击添加文本字段

Question

这是我正在尝试实现的示例:

http://www.bootply.com/60886#

如何在单击时在下拉菜单中创建文本表单。按照这个例子，如何将登录(当前在导航栏中)移动到下拉菜单并仍然保留它在点击时所做的事情(但现在在下拉菜单中显示文本框和登录按钮)？

Answer 1

您最终可以像添加任何其他元素一样添加表单。

.navbar .dropdown-menu {
  width: 300px;
  padding: 10px;
}
.navbar .dropdown-menu {
  border-radius: 0;
  box-shadow: none;
}
.navbar .dropdown-menu form .form-group .form-control,
.navbar .dropdown-menu form .form-group label,
.navbar .dropdown-menu form .form-group .btn-primary {
  margin: 5px 0;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>

      </button> <a class="navbar-brand" href="#">Brand</a>

    </div>
    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a>

        </li>
        <li><a href="#">Link</a>

        </li>
        <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>

          <ul class="dropdown-menu" role="menu">
            <li>
              <form action="#">
                <div class="form-group">
                  <label for="username">Username</label>
                  <input class="form-control" type="text" name="username" />
                  <label for="password">Password</label>
                  <input class="form-control" type="password" name="password" />
                  <input class="btn btn-default" type="submit" name="submit" value="Sign In" />
                </div>
              </form>
            </li>
          </ul>
        </li>
      </ul>
    </div>
    <!-- /.navbar-collapse -->
  </div>
  <!-- /.container-fluid -->
</nav>