switch statement using dialog box

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
 
namespace switch_dialog
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("How are you?", "Hi",MessageBoxButtons.OKCancel);
            switch (result)
            {
                case DialogResult.OK:
                    {
                        this.Text = "[OK]";
                        break;
                    }
                case DialogResult.Cancel:
                    {
                        this.Text = "[Cancel]";
                        break;
                    }
            }
        }
    }
}