protected override async void OnNavigatedTo(NavigationEventArgs e)
{
var url = e.Uri.OriginalString;
_questionId = url.Substring(url.IndexOf('?') + 1);
// TODO: Get question from Question table.
// var question = ...
//
//QuestionTextBlock.Text = question.Text;
//AnswerAButton.Content = "A: " + question.ChoiceA;
//AnswerBButton.Content = "B: " + question.ChoiceB;
}