ng-bootstrap 下拉菜单放置不适用于 angular 7

Question

我正在使用 ng-bootstrap 和 Angular 7 创建一个标准的 bootstrap 菜单，右边有链接，但是如果我使用下拉菜单，它会从屏幕。为了确保我没有弄乱代码，我对 angular、bootstrap（只是 angular.json 中的 css 代码）和 ng-[=28= 进行了全新安装].我已将 NgbModule 包含在 AppModule 中并尝试了此代码：

<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 ml-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item dropdown" ngbDropdown placement="bottom-right">
        <a class="nav-link dropdown-toggle" ngbDropdownToggle href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" ngbDropdownMenu aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
    </ul>
  </div>
</nav>

这是我看到的： Navbar with dropdown menu opened

Answer 1

您需要在具有 ngbDropdown 属性的元素上添加 display="dynamic"。

见the documentation

ng-bootstrap 下拉菜单放置不适用于 angular 7

ng-bootstrap dropdown placement not working with angular 7

ng-bootstrap

angular