Entity framework linq include

Question

I have the following Linq query I'm working with entity framework.

var res = from a in _db.Articles
                  from auth in a.Authors
                  where papers.Contains(a.JoomlaId)
                  select auth.Institution;

The problem is that my institution class has a variable named " Type " of type " InstitutionType " that I need to include, and I have no idea how to do that.

Answer 1

var res = from a in _db.Articles.Include("Authors") 
                                .Include("Authors.Institution")
                                .Include("Authors.Institution.Type")
                  from auth in a.Authors
                  where papers.Contains(a.JoomlaId)
                  select auth.Institution;