如何在WPF ToolBar中更改ToolBarOverflowPanel的WrapWidth值

<ToolBar x:Name="myToolBar">
    <!-- ToolBar的内容 -->
</ToolBar>

private void ChangeWrapWidth()
{
    // 使用VisualTreeHelper类获取ToolBarOverflowPanel的实例
    ToolBarOverflowPanel overflowPanel = FindVisualChild<ToolBarOverflowPanel>(myToolBar);

    if (overflowPanel != null)
    {
        // 设置WrapWidth的值
        overflowPanel.WrapWidth = 200; // 设置为你想要的宽度
    }
}

private T FindVisualChild<T>(DependencyObject parent) where T : DependencyObject
{
    for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
    {
        DependencyObject child = VisualTreeHelper.GetChild(parent, i);

        if (child != null && child is T)
        {
            return (T)child;
        }
        else
        {
            T childOfChild = FindVisualChild<T>(child);

            if (childOfChild != null)
            {
                return childOfChild;
            }
        }
    }

    return null;
}