>> >>var query = from g in root.Groups >> from r in g.Rules >> from c in r.Conditions >> from a in c.Actions >> where g.Rules != null >> where r.Conditions != null >> where c.Actions != null >> where a.ActionID == ActionId >> select a; >> >>List<RuleAction> items = query.ToList(); >>RetVal = items[0];>>
> >RetVal = items.Count==0 ? null : items[0];It's failing on this line:
List<RuleAction> items = query.ToList();