private async void btnDidISee_Click(object sender, RoutedEventArgs e) { string title = txtDidISee.Text; Movie movie = MovieDO.FindByTitle(title); string message = String.Empty; if (movie == null) { message = String.Format("You haven't seen {0}", title); } else { EpisodeEntity lastEpisode = RecordDO.GetEpisodesByMovie(movie).LastOrDefault(); if (lastEpisode == null) { message = "You have seen that one!"; } else { message = String.Format("Last episode you saw was S{0:D2}E{1:D2}", lastEpisode.Season, lastEpisode.Serie); } } MessageDialog dialog = new MessageDialog(message); await dialog.ShowAsync(); }