Question

I’m trying to do an expression some like this:

from a in objcxt.tableA
join b in objcxt.tableB
on a.fld1 equals b.fld1 and a.fld2 equals b.fld2
into b_join from b in b_join.DefaultIfEmpty()

edit: b.fld2 can be null.

I tryed “and”, “&&”, but no success.

Some help?

Answer 1

You could try:

from a in objcxt.tableA
join b in objcxt.tableB
on
    new { a.fld1, a.fld2 }
equals
    new { b.fld1, b.fld2 }
into b_join from b in b_join.DefaultIfEmpty()