如何在Xamarin.forms中显示ListView中的ListView

<ListView x:Name="outerListView">
    <ListView.ItemTemplate>
        <DataTemplate>
            <ViewCell>
                <StackLayout>
                    <!-- 外部ListView的其他视图元素 -->

                    <!-- 在此处嵌入内部ListView -->
                    <ListView x:Name="innerListView">
                        <ListView.ItemTemplate>
                            <DataTemplate>
                                <ViewCell>
                                    <!-- 内部ListView的单个项的布局 -->
                                </ViewCell>
                            </DataTemplate>
                        </ListView.ItemTemplate>
                    </ListView>
                </StackLayout>
            </ViewCell>
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>

public partial class YourPage : ContentPage
{
    public YourPage()
    {
        InitializeComponent();
        outerListView.ItemsSource = YourOuterDataSource; // 设置外部ListView的数据源
        outerListView.ItemTapped += OuterListView_ItemTapped; // 处理外部ListView的项被点击事件
    }

    private void OuterListView_ItemTapped(object sender, ItemTappedEventArgs e)
    {
        var selectedItem = e.Item as YourOuterItem;
        innerListView.ItemsSource = selectedItem.InnerDataSource; // 设置内部ListView的数据源
    }
}