using System;
using System.IO;

class MainClass {
    static void Main(string[] args) {
        DirectoryInfo MySourceDirInfo = new DirectoryInfo("c:\\source");
        DirectoryInfo MyDisDirInfo = new DirectoryInfo("c:\\target");

        CopyDirectory(MySourceDirInfo, MyDisDirInfo);

    }

    static void CopyDirectory(DirectoryInfo source, DirectoryInfo destination) {
        if (!destination.Exists) {
            destination.Create();
        }
        FileInfo[] MyFileInfo = source.GetFiles();
        foreach (FileInfo file in MyFileInfo) {
            file.CopyTo(Path.Combine(destination.FullName,
               file.Name));
        }
        DirectoryInfo[] MyDirectoryInfo = source.GetDirectories();
        foreach (DirectoryInfo dir in MyDirectoryInfo) {
            string destinationDir = Path.Combine(destination.FullName, dir.Name);
            CopyDirectory(dir, new DirectoryInfo(destinationDir));
        }
    }
}