C#:同步两个RichTextBox的滚动位置？

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        // 添加滚动事件处理程序
        richTextBox1.VScroll += RichTextBox_VScroll;
        richTextBox2.VScroll += RichTextBox_VScroll;
    }

    private void RichTextBox_VScroll(object sender, EventArgs e)
    {
        // 获取当前滚动条位置
        int scrollPosition = ((RichTextBox)sender).VerticalScrollBar.Value;

        // 同步滚动条位置
        if (sender == richTextBox1)
        {
            richTextBox2.VerticalScrollBar.Value = scrollPosition;
        }
        else if (sender == richTextBox2)
        {
            richTextBox1.VerticalScrollBar.Value = scrollPosition;
        }
    }
}