public void GenPrev()
{
QAInstance instance = QADictionary.BackToPreviousQuestion();
if (instance != null)
{
AnswerTB.Text = instance.Answer;
QuestionTB.Text = instance.Question;
}
}
/// <summary>
/// Create the next question in the user interface in case the XML file exists.
/// </summary>
public void GenNext()
{
QAInstance instance = QADictionary.GenerateNextQuestion();
if (instance == null)
{
MessageBox.Show($"No records found in the XML file.");
}
else
{
AnswerTB.Text = instance.Answer;
QuestionTB.Text = instance.Question;
}
}
private void Button_Click_3(object sender, RoutedEventArgs e)
{
if (EditMode) // Disabling UI edit mode
{
if (MessageBox.Show("Save changes?", "Apply?", MessageBoxButton.YesNo, MessageBoxImage.Warning) == MessageBoxResult.Yes)
{
QAInstance instance = new QAInstance(QuestionTB.Text, AnswerTB.Text);
new XMLWorker(System.IO.Directory.GetCurrentDirectory() + Properties.Settings.Default.XMLname).UpdateExisting(
new QAInstance(QuestionValue, AnswerValue), new QAInstance(QuestionTB.Text, AnswerTB.Text));
}
else
{
QuestionTB.Text = QuestionValue;
AnswerTB.Text = AnswerValue;
}
EditMode = false;
AnswerTB.Background = Brushes.Transparent;
QuestionTB.Background = Brushes.Transparent;
EditButton.Content = "Edit";
QuestionValue = null;
AnswerValue = null;
QADictionary.ReloadDictionary();
ControlEnableInvert(new FrameworkElement[] { AddButton, Next, Previous });
AnswerTB.IsReadOnly = true;
QuestionTB.IsReadOnly = true;
}
else // Edit mode in UI
{
AnswerValue = AnswerTB.Text;
QuestionValue = QuestionTB.Text;
EditMode = true;
EditButton.Content = "Save";
AnswerTB.Background = Brushes.WhiteSmoke;
QuestionTB.Background = Brushes.WhiteSmoke;
ControlEnableInvert(new FrameworkElement[] { AddButton, Next, Previous });
AnswerTB.IsReadOnly = false;
QuestionTB.IsReadOnly = false;
}
}
/// <summary>
/// On closing this windows
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void AddWindowsClosed(object sender, EventArgs e)
{
QADictionary.ReloadDictionary();
}
public MainWindow()
{
InitializeComponent();
QADictionary.ReloadDictionary();
GenNext();
}