private void LoadTree(object sender, RoutedEventArgs e)
 {
     var treeDialog = new CreateLoadTreeDialog();
     treeDialog.LoadClick(treeDialog.Load, new EventArgs());
     treeDialog.ShowDialog();
     if (BL.Application.CurrentTree != null)
     {
         TreeLoaded();
         ByName.IsSelected = false;
         ByName.IsSelected = true;
     }
 }