private void addAnswerBtn_Click(object sender, EventArgs e)
{
if (answerTextBox.Text == "") {
MessageBox.Show("Please enter answer name");
return;
}
foreach (Answer answer in answerListBox.Items) {
if (String.Equals(answer.Name, answerTextBox.Text, StringComparison.OrdinalIgnoreCase)) {
MessageBox.Show("Name already exist. Please enter another name");
return;
}
}
Answer newAnswer = new Answer(answerTextBox.Text, Convert.ToDecimal(costTextBox.Text), this.question);
answerListBox.Items.Add(newAnswer);
}
public void ToggleModification(Answer modification)
{
if (modifications.Contains(modification)) modifications.Remove(modification);
else {
if (modification.Owner.Type == Question.QuestionType.SingleAnswer) {
Answer modificationToRemove = null;
foreach (Answer otherModification in modifications) {
if (otherModification.Owner == modification.Owner) {
modificationToRemove = otherModification;
break;
}
}
if (modificationToRemove != null) modifications.Remove(modificationToRemove);
}
modifications.Add(modification);
}
}