C#

private void Page_Load(object sender, System.EventArgs e)
{

    // using System.IO
    // make a reference to a directory
    DirectoryInfo di = new DirectoryInfo("C:\\program files\\");

    // get a reference to each directory in that directory
    DirectoryInfo[] diArr = di.GetDirectories();

    // print out the names of the directories
    foreach (DirectoryInfo dri in diArr)
    {
        //this example outputs to the console, but you can use
        //dri.Name to allocate values to labels etc etc
        labelPath.Text=dri.Name;
    }

}