> My book, Effective techniques for Application Development(Hentzenwerke) has a form class that uses the visual DE fo the designer and then replaces the cursors and relations with user defiend classes at runtime.

Sounds really cool. BTW, are the books out yet? We've debated doing something like that ourselves, but since the data environments actually come from the business objects, not the forms, it's not a very clean fit with the rest of the framework. I usually just drag and drop fields from the DBC or the project and don't worry about not having an actual data environment in the forms.