C# สอบถามเกี่ยวกับการ copy file จาก ที่หนึ่งไป ยังอีกที่หนึ่งหน่อยครับผม ^^ รบกวนด้วยครับ

/*
 * Created by SharpDevelop.
 * User: Trace
 * Date: 5/14/2014
 * Time: 2:34 PM
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using INI;
using System.IO;

namespace Copy
{
	/// <summary>
	/// Description of MainForm.
	/// </summary>
	public partial class MainForm : Form
	{
		public MainForm()
		{
			//
			// The InitializeComponent() call is required for Windows Forms designer support.
			//
			InitializeComponent();
			
			//
			// TODO: Add constructor code after the InitializeComponent() call.
			//
		}
		
		void MainFormLoad(object sender, EventArgs e)
		{

			
			System.IO.File.Move(@"C:\test.txt", @"C:\test\test11.txt");

		}
		
	}
}

using System;
using System.IO;

class Program
{
    static void Main()
    {
	File.Copy("C:\\source.txt", "D:\\source.txt");
    }
}

if System.IO.File.exist("C:\test.txt") then
System.IO.File.Copy("C:\test.txt", "C:\test\test11.txt")
end if