private bool OnPageIndexReceived(Event ev)
{
if (!(IsStudent && LessonExists))
{
return(true);
}
Lesson lesson = null;
Application.Current.Dispatcher.BeginInvoke(
new Action(
() =>
{
lesson = (MainPage.LessonPage.DataContext as Lesson);
lesson.TeacherPageIndex = (int)ev.get <int>();
// If the receiver is ok to switch slide, we update his current page
if (lesson.IsSync.HasValue && lesson.IsSync.Value && Catalog.CurrentPageName != "QuestionsPage")
{
lesson.ChangeCurrentPage(lesson.TeacherPageIndex);
}
}
),
DispatcherPriority.Normal
);
return(true);
}