private void ProcessSubmit()
{
var submittedAnswer = tAnswer.Text.Trim();
if (submittedAnswer.Length == 0)
{
MessageBox.Show("You must submit an answer");
return;
}
bool correct;
try
{
correct = CurrentQuestion.SubmitAnswer(submittedAnswer);
}
catch (Exception e)
{
MessageBox.Show($"Your answer is invalid, try again: {e.Message}");
return;
}
lAnswer.Content = CurrentQuestion.GetAnswer();
if (correct)
{
lMessage.Foreground = Brushes.Green;
lMessage.Content = "Correct!";
}
else
{
lMessage.Foreground = Brushes.Red;
lMessage.Content = "Incorrect";
}
bNext.IsEnabled = true;
bSubmit.IsEnabled = false;
}
private void Next_Click(object sender, RoutedEventArgs e)
{
var correctAnswer = _currentQuestion.GetAnswer();
string studentsAnswer;
if (_currentQuestion is AnswerChoiceQuestion)
{
if (Variants.SelectedIndex == -1)
{
var message = new Message("Не выбран ответ");
message.ShowDialog();
return;
}
studentsAnswer = Variants.Items[Variants.SelectedIndex].ToString();
}
else
{
studentsAnswer = StudentsAnswer.Text;
}
if (correctAnswer == studentsAnswer)
{
var message = new Message("Верно");
message.ShowDialog();
_correctAnswers++;
}
else
{
var message = new Message("Неверно");
message.ShowDialog();
}
ShowNextQuestion();
}