Question

I have 2 lists of different objects, that I need to join on 2 paramaters. Using Linq, I can join the lists with anonymous types.

from L1 in List1
join L2 in List2 on new { L1.Field1, L1.Field2 } equals new { L2.Field1, L2.Field2 }
select...

This works perfectly, except I want to include empty string matches on Field2. I’ve trimmed any whitespace from both lists also, so they are both empty strings.

Is this possible?

Answer 1

Ahh solved it, Field1 in List1 was null, not empty. setting it to an emptry string when null fixed the problem.