private void HandleCommandInvalidated(object sender, CommandSubscriberEventArgs e)
 {
     Invalidate(e.CommandKey);
 }
 private void HandleCommandInvalidated(object sender, CommandSubscriberEventArgs e)
 {
     Invalidate(e.CommandKey);
 }
 private void HandleCommandInvalidated(object sender, CommandSubscriberEventArgs e)
 {
     _editor.Presentation.DocumentTools.RefreshDocumentTools();
 }