C#

using System;<br />
using System.Collections.Generic;<br />
using System.ComponentModel;<br />
using System.Data;<br />
using System.Drawing;<br />
using System.Text;<br />
using System.Windows.Forms;<br />
<br />
private void helpToolStripMenuItem_Click(object sender, EventArgs e)<br />
{<br />
    MessageBox.Show("Hello, world.");<br />
}<br />

// Check if the target directory exists, if not, create it.   
            if (Directory.Exists(target.FullName) == false)   
            {   
                Directory.CreateDirectory(target.FullName);   
            }   
               
               
            // Copy each file into it's new directory.   
            // Do not copy if it is current file   
            foreach (FileInfo fi in source.GetFiles())   
            {   
               if (fi.CreationTime != DateTime.Today)   
                {   
                    Console.WriteLine("Creation Time: {0}", fi.CreationTime);   
                    Console.WriteLine(@"Copying {0}\{1}", target.FullName, fi.Name);   
                    fi.CopyTo(Path.Combine(target.ToString(), fi.Name), true);   
                }   
                   
            }   
               
            // Delete files from old directory.   
            foreach (FileInfo fi in source.GetFiles())   
            {   
                Console.WriteLine(@"Deleting {0}\{1}", source.FullName, fi.Name);   
                fi.Delete();   
            }