/// <summary>
/// Preserves state associated with this page in case the application is suspended or the
/// page is discarded from the navigation cache. Values must conform to the serialization
/// requirements of <see cref="SuspensionManager.SessionState"/>.
/// </summary>
/// <param name="pageState">An empty dictionary to be populated with serializable state.</param>
protected override void SaveState(Dictionary <String, Object> pageState)
{
pageState["ID"] = Note.UniqueId;
Note.PropertyChanged -= CurrentNotePropertyChanged;
_printer.UnregisterForPrinting();
}
