private void nextQuestionButton_Click(object sender, EventArgs e)
{
// If this isn't the first question, validate the answer
if (questionIndex > -1)
{
validateAnswer();
}
// Select next question
questionIndex++;
// If we've gone through all questions, end the quiz
if (questionIndex == quiz.Questions.Count)
{
endQuiz();
return;
}
// Load the current question
currentQuestion = quiz.Questions[questionOrder[questionIndex]];
// If the question is a text question hide the picture box and update the question text label
if (currentQuestion.Type == QuestionType.TEXT)
{
questionTextLabel.Text = currentQuestion.Text;
questionPictureBox.Visible = false;
}
// Otherwise show the questions image, and set the label to indicate that this is a picture question
else
{
questionTextLabel.Text = StringResources.MISC_PICTURE_QUESTION_LABEL;
questionPictureBox.Visible = true;
questionPictureBox.Image = quiz.Images[currentQuestion.ImageIndex];
}
// Update answers
answersComboBox.DataSource = currentQuestion.Answers;
// Ask windows to re-render everything
Refresh();
}
/// <summary>
/// Sets up a new quiz and adds a blank question to it
/// </summary>
private void setupNewQuiz()
{
SelectedQuiz = new Quiz();
SelectedQuestion = SelectedQuiz.AddQuestion();
updateQuestionList();
selectQuestion(0);
}
private void removeQuestionButton_Click(object sender, EventArgs e)
{
// Remove the selected question when the remove question button is clicked
SelectedQuiz.RemoveQuestion(SelectedQuestion);
SelectedQuestion = null;
updateQuestionList();
}
private void questionListBox_SelectedIndexChanged(object sender, EventArgs e)
{
// If the sanity check passes, select the new question.
// If not, select the previously selected question
if (doSanityChecks())
{
SelectedQuestion = (Question)questionListBox.SelectedItem;
}
else
{
selectQuestion(questionListBox.Items.IndexOf(SelectedQuestion));
}
}
/// <summary>
/// Removes a question from the quiz
/// </summary>
/// <param name="question">The question to remove</param>
public void RemoveQuestion(Question question)
{
Questions.Remove(question);
}
/// <summary>
/// Adds a new question to the quiz
/// </summary>
/// <returns>The newly created and added question</returns>
public Question AddQuestion()
{
Question question = new Question();
question.QuestionId = String.Format(StringResources.MISC_QUESTION_ID, Questions.Count);
Questions.Add(question);
return question;
}
/// <summary>
/// Saves a question to a zip archive
/// </summary>
/// <param name="question">The question to save</param>
/// <param name="archive">The archive to save to</param>
public void SaveQuestion(Question question, ZipArchive archive)
{
// Create file in zip
ZipArchiveEntry questionEntry = archive.CreateEntry(StringResources.PATH_QUESTION_DIR + Path);
using (Stream stream = questionEntry.Open())
{
// Serialize the question
XmlSerializer x = new XmlSerializer(typeof(Question));
x.Serialize(stream, question);
}
}
