Reputation: 2687
I'm trying to do something like this:
int? id = invoices.Where(l => l.OrganisationID == part.OrganisationID)
.Select(m => m.TypeID).FirstOrDefault();
'invoices' is a List
But invoices.Where(l => l.OrganisationID == part.OrganisationID)
might be null, in which case id
needs to be a new Nullable<int>
.
How can I do this in one line (and efficiently) rather than first checking if the object is null or not?
Upvotes: 2
Views: 8053
Reputation: 14316
How about that?
int? id = invoices
.Where(l.OrganisationID == part.OrganisationID))
.Select(m => m.TypeID as int?) // add 'as int?'
.FirstOrDefault();
Upvotes: 1