C#中Ribbon控件的分组功能如何使用

using System;
using System.Windows.Forms;
using Microsoft.Office.Tools.Ribbon;
using Microsoft.Office.Tools.Ribbon.Controls;

namespace RibbonControlDemo
{
    public partial class Ribbon1
    {
        private void Ribbon1_Load(object sender, RibbonUIEventArgs e)
        {
            // 创建一个分组
            RibbonGroup ribbonGroup = Factory.CreateRibbonGroup();
            ribbonGroup.Label = "My Group";

            // 在分组中添加一个按钮
            RibbonButton button1 = Factory.CreateRibbonButton();
            button1.Label = "Button 1";
            button1.Click += Button1_Click;
            ribbonGroup.Items.Add(button1);

            // 在分组中添加另一个按钮
            RibbonButton button2 = Factory.CreateRibbonButton();
            button2.Label = "Button 2";
            button2.Click += Button2_Click;
            ribbonGroup.Items.Add(button2);

            // 将分组添加到Ribbon控件中
            this.RibbonTabs[0].Groups.Add(ribbonGroup);
        }

        private void Button1_Click(object sender, RibbonControlEventArgs e)
        {
            MessageBox.Show("Button 1 clicked");
        }

        private void Button2_Click(object sender, RibbonControlEventArgs e)
        {
            MessageBox.Show("Button 2 clicked");
        }
    }
}