private async void ListView_ItemTapped(object sender, ItemTappedEventArgs e) { if (currentUser == 0) { await DisplayAlert("Warning", "Please Login First", "Ok"); } else { var userOrgan = e.Item as OrganDetail; MainQuizIcons.IsVisible = true; QuizOptions.IsVisible = false; UserChoice = new UserChoice(); UserChoice.UserID = currentUser; UserChoice.OrganDetailID = userOrgan.ID; HomeViewModel.UserChoices = await HomeViewModel.PostUserChoice(UserChoice); EditQuiz editQuiz = new EditQuiz(); editQuiz.userId = currentUser; editQuiz.organDetailId = userOrgan.ID; HomeViewModel.UserChoices = await HomeViewModel.EditUserChoice(editQuiz); } }