/// <summary>
/// Displays the album treeview control.
/// </summary>
/// <param name="dirBrowser">A reference to the cached DirectoryBrowser object.</param>
/// <param name="directoryLookup">A cache of all the PhotoDirectory objects.</param>
private void DisplayTreeview(DirectoryBrowser dirBrowser, Hashtable directoryLookup)
{
PhotoDirectories dirs = dirBrowser.GetDirectories();
tvwMain.Controls.Clear();
addDirectoryNodes(directoryLookup, dirBrowser, dirs, null);
}
