using System.IO;


public static void RenameDirectory(string originalName, string newName)

{

    try

    {

        // "rename" it

        Directory.Move(originalName, newName);

    }

    catch (IOException ioe)

    {

        // most likely given the directory exists or isn't empty

        Console.WriteLine(ioe.ToString());

    }

}


منبع : "C#‎ 3.0 Cookbook™, Third Edition"