public async void AnswerButtonClicked(object sender, EventArgs e) { int index = 0; Button button = sender as Button; button.BackgroundColor = Color.FromHex("#8A3033"); button.TextColor = Color.FromHex("#EAE7DC"); answer1Button.IsEnabled = false; answer2Button.IsEnabled = false; answer3Button.IsEnabled = false; answer4Button.IsEnabled = false; if (button == answer2Button) { index = 1; } if (button == answer3Button) { index = 2; } if (button == answer4Button) { index = 3; } httpService.PostPlayerAnswer(new AnswerRelation(nextQuestion.questionAnswers[index]._id, App.player.playerID)); }