public void GoBackward()
 {
     if (m_History.CanNavigateBack)
     {
         string path    = m_History.MoveBackward();
         string oldPath = CurrentPath;
         RefreshDisksBrowser(path, CurrentPath);
         ProcessFolder(path);
         int index = FindItemWithPath(oldPath);
         if (index != -1)
         {
             browser.SelectedIndices.Add(index);
             browser.EnsureVisible(index);
         }
     }
 }