public void LoadQuestions(IEnumerable <QuestionViewModel> questions)
{
if (!String.IsNullOrEmpty(QIds))
{
var qids = QIds.SplitToIds();
Questions = questions.Where(item => qids.Contains(item.Id)).ToList();
}
foreach (var item in SubItems)
{
item.LoadQuestions(questions);
}
}
public ICollection <int> GetQuestionIds()
{
var questionIds = new List <int>();
if (!String.IsNullOrEmpty(QIds))
{
questionIds.AddRange(QIds.SplitToIds());
}
if (SubItems.IsNullOrEmpty())
{
return(questionIds.ToList());
}
var subQids = SubItems.SelectMany(item => item.GetQuestionIds());
if (subQids.IsNullOrEmpty())
{
return(questionIds.ToList());
}
return(questionIds.Union(subQids).Distinct().ToList());
}