C#

private void cmdCopy_Click(object sender, System.EventArgs e)<br />
{<br />
	if(!Directory.Exists(txtDist.Text))<br />
	{<br />
		MessageBox.Show("Please enter a valid path");<br />
		return;<br />
	}<br />
	DirectoryInfo dir=new DirectoryInfo(txtSrc.Text);<br />
	CopyDirectory(txtSrc.Text,txtDist.Text+"\\"+dir.Name);<br />
	MessageBox.Show("OK");<br />
}<br />
<br />
private void CopyDirectory(string src,string dist)<br />
{<br />
    if(!Directory.Exists(dist))<br />
		Directory.CreateDirectory(dist);<br />
<br />
    FileInfo file;<br />
	DirectoryInfo dir;<br />
	string[] strFiles;<br />
	string[] strDirs;<br />
<br />
	//Copy all files...<br />
	strFiles=Directory.GetFiles(src);<br />
	foreach (string strFile in strFiles)<br />
	{<br />
		file=new FileInfo(strFile);<br />
		file.CopyTo(dist+"\\"+file.Name);<br />
	}<br />
    <br />
	//Copy child directories...<br />
	strDirs=Directory.GetDirectories(src);<br />
	foreach (string strDir in strDirs)<br />
	{<br />
		dir=new DirectoryInfo(strDir);<br />
		if(dir.FullName==dist)//check to prevent infinite loop if the distination is under the source folder..<br />
			continue;<br />
		CopyDirectory(dir.FullName,dist+"\\"+dir.Name);<br />
	}<br />
}