private void buttonEdit_Click(object sender, RoutedEventArgs e)
{
CRUDoperations.EditQuestion(dataGridQuestions.ItemsSource as IList <Question>, out string msg);
MessageBox.Show(msg);
Refresh();
}
private void buttonAdd_Click(object sender, RoutedEventArgs e)
{
string msg;
if ((string.IsNullOrWhiteSpace(textBoxNewQuestion.Text)) || (string.IsNullOrWhiteSpace(textBoxAnswerA.Text)) ||
(string.IsNullOrWhiteSpace(textBoxAnswerB.Text)) || (string.IsNullOrWhiteSpace(textBoxAnswerC.Text)) ||
(string.IsNullOrWhiteSpace(textBoxAnswerD.Text)) || (string.IsNullOrWhiteSpace(textBoxCorrectAnswer.Text)))
{
MessageBox.Show("You have to fill in all the fields!");
}
else
{
if (textBoxAnswerA.Text == textBoxAnswerB.Text || textBoxAnswerB.Text == textBoxAnswerC.Text || textBoxAnswerC.Text == textBoxAnswerD.Text ||
textBoxAnswerD.Text == textBoxAnswerA.Text || textBoxAnswerA.Text == textBoxAnswerC.Text || textBoxAnswerB.Text == textBoxAnswerD.Text)
{
MessageBox.Show(" Answers can't be the same!");
}
else
{
if (textBoxCorrectAnswer.Text == "A" || textBoxCorrectAnswer.Text == "B" || textBoxCorrectAnswer.Text == "C" || textBoxCorrectAnswer.Text == "D")
{
CRUDoperations.AddQuestions(textBoxNewQuestion.Text, textBoxAnswerA.Text, textBoxAnswerB.Text, textBoxAnswerC.Text, textBoxAnswerD.Text, textBoxCorrectAnswer.Text, out msg);
MessageBox.Show(msg);
Refresh();
textBoxNewQuestion.Clear();
textBoxAnswerA.Clear();
textBoxAnswerB.Clear();
textBoxAnswerC.Clear();
textBoxAnswerD.Clear();
textBoxCorrectAnswer.Clear();
}
else
{
MessageBox.Show("You have to input letters 'A' , 'B' , 'C' or 'D' in Correct Answer's field!");
textBoxCorrectAnswer.Clear();
}
}
}
}
private void buttonDelete_Click(object sender, RoutedEventArgs e)
{
CRUDoperations.DeleteQuestion(dataGridQuestions.SelectedItem as Question);
Refresh();
}
