private void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
progressBar1.Value = progressBar1.Maximum;
progressBar1.Visibility = System.Windows.Visibility.Collapsed;
textBlock1.Visibility = System.Windows.Visibility.Collapsed;
textBlock1wfx.Visibility = System.Windows.Visibility.Collapsed;
FInfo = new ObservableCollection<FolderSizeInfoClass>(FSI.Where(w => w.FSize > 0).OrderBy(o => o.FSize));
this.DataContext = FInfo;
}