Linq query with nullable sum

Question

from i in Db.Items
select new VotedItem
{
    ItemId = i.ItemId,
    Points = (from v in Db.Votes
              where b.ItemId == v.ItemId
              select v.Poi         


        

Answer 1

Thought I would throw another solution out there. I had a similar issue and this is how I ended up solving it:

Where(a => a.ItemId == b.ItemId && !b.IsPointsNull()).Sum(b => b.Points)