如何在mdiparent RibbonForm中以mdichild的形式列出所有的barButton项？

private void RibbonForm_Load(object sender, EventArgs e)
{
    foreach (RibbonPage page in ribbonControl1.Pages)
    {
        foreach (RibbonPageGroup group in page.Groups)
        {
            foreach (BarItemLink link in group.ItemLinks)
            {
                BarButtonItem buttonItem = link.Item as BarButtonItem;
                if (buttonItem != null)
                {
                    // 创建mdichild窗体
                    Form mdiChildForm = new Form();
                    mdiChildForm.MdiParent = this;
                    mdiChildForm.Text = buttonItem.Caption; // 设置mdichild窗体标题为barButton项的标题
                    mdiChildForm.Show();
                }
            }
        }
    }
}