I'm trying to check whether a nullable field has a value or not. However, when I try the next statement, there is an exception thrown:

.Where (e=>e.EndDate > DateTime.Today | !e.EndDate.HasValue);

The produced query looks like this, where p1 is filled with 1(?):

WHERE (""."LPFA_2" = :p1)

The exception thrown complains about an empty identifier, which is correct.

I must be overlooking something very obvious, but what?

Try this:

e.EndDate == null

thanxs