如何通过右键单击ListViewItem打开上下文菜单

<ListView PreviewMouseRightButtonDown="ListViewItem_RightClick">
    <!-- ListView的内容 -->
</ListView>

private void ListViewItem_RightClick(object sender, MouseButtonEventArgs e)
{
    ListViewItem listViewItem = FindAncestor<ListViewItem>((DependencyObject)e.OriginalSource);
    if (listViewItem != null)
    {
        ContextMenu contextMenu = new ContextMenu();

        // 添加菜单项
        MenuItem menuItem1 = new MenuItem();
        menuItem1.Header = "操作1";
        menuItem1.Click += MenuItem1_Click;
        contextMenu.Items.Add(menuItem1);

        MenuItem menuItem2 = new MenuItem();
        menuItem2.Header = "操作2";
        menuItem2.Click += MenuItem2_Click;
        contextMenu.Items.Add(menuItem2);

        // 显示上下文菜单
        contextMenu.IsOpen = true;
    }
}

// 辅助方法，用于查找ListViewItem
private static T FindAncestor<T>(DependencyObject current) where T : DependencyObject
{
    do
    {
        if (current is T ancestor)
        {
            return ancestor;
        }
        current = VisualTreeHelper.GetParent(current);
    }
    while (current != null);
    return null;
}

// 菜单项的点击事件处理程序
private void MenuItem1_Click(object sender, RoutedEventArgs e)
{
    // 执行操作1的逻辑
}

private void MenuItem2_Click(object sender, RoutedEventArgs e)
{
    // 执行操作2的逻辑
}