Count Directories

/*
 * Can't gaurentee this works correctly since i am not
 * near my compiler and am writing it freehand in Pastebin
 * but in theory it should work.
 */
int countDirectories(string Dir)
{
    int retVal = 0;
    string[] Names = Dir.Split('\');

    //If you want to include the root ( ex. f:\ )
    return Names.Count;

    //If you don't want to include the root
    return Names.Count - 1;
}