public BaseAnswer FindAnswerFor(BaseQuestion bq)
{
BaseAnswer ba;
_Answers.TryGetValue(bq, out ba);
return ba;
}
public bool HaveAncestor(BaseQuestion q)
{
if (this.Parent == q)
return true;
if (this.Parent is RootQuestion)
return false;
return this.Parent.HaveAncestor(q);
}
public BaseAnswer AddAnswerFor(BaseQuestion bq)
{
BaseAnswer ba;
_Answers.TryGetValue(bq, out ba);
if (ba == null)
{
ba = (BaseAnswer)Activator.CreateInstance(bq.AnswerType);
_Answers.Add(bq, ba);
}
return ba;
}
public bool Contains(BaseQuestion q)
{
return q.HaveAncestor(this);
}