private void Flyout_Closed(object sender, object e)
{
var text = string.Empty;
var selection = EditBox.Document.Selection;
selection.Expand(TextRangeUnit.Window);
if (!string.IsNullOrWhiteSpace(selection.Text.Trim('\r', '\n')))
{
EditBox.Document.GetText(TextGetOptions.FormatRtf, out text);
}
node.ChangeNotesTransactional(text);
}