How to force LINQ Sum() to return 0 while source collection is empty

Question

Basically when I do the following query, if no leads were matched the following query throws an exception. In that case I\'d prefer to have the sum equalize 0 rather than an

Answer 1

Try this instead, it's shorter:

db.Leads.Where(..).Aggregate(0, (i, lead) => i + lead.Amount);