public void MethodExpression9()
{
using (var db = new TestDbManager())
AreEqual(
from ch in Child
from p in
from p in Parent
where p.ParentID == ch.ChildID / 10
select p
where ch.ParentID == p.ParentID
select ch
,
from ch in db.Child
from p in TestDbManager.GetParent9(db, ch)
where ch.ParentID == p.ParentID
select ch);
}