NHibernate returning duplicate object in child collections when using Fetch

Question

When doing a query like this (using Nhibernate 2.1.2):

 ICriteria criteria = session.CreateCriteria()
                .SetFetchMode(\"ChildColl         


        

Answer 1

What were you mapping your collection as? If your using a bag for example you will get duplicates. You can use a set instead and you won't get duplicates.