>>>>>RetVal = items.Count==0 ? null : items[0];
>>>>
>>>>It's failing on this line:
>>>>

>>>>List<RuleAction> items = query.ToList();
>>>>

>>>Oh. I thought you said the last line :-}
>>>IAC, that seems odd. I just tested with a query with would have no matches and query.ToList() returned an empty List.....
>>

>>What does <RuleAction> mean in this syntax List<RuleAction> Is it some type?

>
>A generic list. ie. a list that only contains objects of type RuleAction.....

I was just thinking (and I may be completely wrong) could the problem be related with this type?