C#将comboBox的内容写入注册表的最佳方法是什么？

using System;
using System.Windows.Forms;
using Microsoft.Win32;

public class Form1 : Form
{
    private ComboBox comboBox1;
    private Button button1;

    public Form1()
    {
        comboBox1 = new ComboBox();
        button1 = new Button();

        comboBox1.Items.AddRange(new object[] { "Value1", "Value2", "Value3" });
        comboBox1.Location = new System.Drawing.Point(10, 10);
        comboBox1.Name = "comboBox1";
        comboBox1.Size = new System.Drawing.Size(121, 21);

        button1.Location = new System.Drawing.Point(10, 40);
        button1.Name = "button1";
        button1.Size = new System.Drawing.Size(75, 23);
        button1.Text = "Write to Registry";
        button1.Click += new EventHandler(button1_Click);

        this.Controls.Add(comboBox1);
        this.Controls.Add(button1);
    }

    private void button1_Click(object sender, EventArgs e)
    {
        // 创建或打开注册表项
        RegistryKey key = Registry.CurrentUser.CreateSubKey("Software\\MyApp");

        // 将ComboBox的选定内容写入注册表
        key.SetValue("ComboBoxValue", comboBox1.SelectedItem.ToString());

        // 关闭注册表项
        key.Close();
    }
}