Composite keys fluent nhibernate

问题

Can one do this on a fluent nhibernate ?

When I try to save, I am profiding the profile and the scenario objects and the id's are not null.

Nhibernate complains that it can't insurt NULL for ProfileID column. Fluent Nhibernate doesn't know how to get to the Profile.ID ?

CompositeId().KeyProperty(x => x.Profile.ID, "ProfileID").KeyProperty(x => x.Scenario.ID, "ScenarioID");

回答1:

You should probably use this instead:

CompositeId()
    .KeyReference(x => x.Profile, "ProfileID")
    .KeyReference(x => x.Scenario, "ScenarioID");

来源：https://stackoverflow.com/questions/5709141/composite-keys-fluent-nhibernate