private void DelSelectedQuestionsExecute()
{
if (_isVoid)
{
return;
}
if (SelectedQuestion == null)
{
return;
}
var questIndex = QuestionVMs.Count - 1;
while (SelectedQuestion != null)
{
if (QuestionVMs.IndexOf(SelectedQuestion) < questIndex)
{
questIndex = QuestionVMs.IndexOf(SelectedQuestion);
}
DelQuestion(SelectedQuestion);
}
if (QuestionVMs.Count > 0)
{
if (questIndex > 0)
{
SelectedQuestion = QuestionVMs[questIndex - 1];
}
else
{
SelectedQuestion = QuestionVMs[questIndex];
}
}
}
private void AddQuestionExecute()
{
if (_isVoid)
{
return;
}
QuestionVMs.Add(
new QuestionViewModel {
Number = QuestionVMs.Count + 1
});
}
private void SelectedQuestionPositionDownExecute()
{
if (QuestionVMs.Count <= 1 || QuestionVMs.IndexOf(SelectedQuestion) == QuestionVMs.Count - 1)
{
return;
}
var selectedIndex = QuestionVMs.IndexOf(SelectedQuestion);
QuestionVMs.Move(selectedIndex, selectedIndex + 1);
_recalculateNumbers();
}
public void DelQuestion(QuestionViewModel question)
{
if (_isVoid)
{
return;
}
if (QuestionVMs.Contains(question))
{
QuestionVMs.Remove(question);
}
_recalculateNumbers();
}
