private void SetRichElementsState()
{
// if tombstoning - don't overwrite any selected photo from user with the one from DB.
if (photoData == null)
{
task.PreviewPhoto(PhotoPreviewElement);
}
SetPhotoPreviewState();
SetVoiceMemoPreviewState();
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
InitTask();
DataContext = task;
task.PreviewPhoto(PhotoPreview);
(ApplicationBar.Buttons[0] as ApplicationBarIconButton).IsEnabled = !task.IsCompleted;
}