using System;
using System.Windows.Forms;
using System.IO;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
			if (File.Exists("c:\\testFile.txt"))
			{
				//shows message if testFile exist 
				MessageBox.Show ("File 'testFile' Exist ");
			}
			else
			{
				//create the file testFile.txt 
				File.Create("c:\\testFile.txt");
				MessageBox.Show("File 'testFile' created ");
			}
        }
    }
}