>Where would you put code to inform the user that business rules have been violated?>
Check out the form-level DisplayBrokenRules() method to see how this is built into the Framework. Alternately, you can instantiate and call the broken rule message classes directly.
Regards,
Kevin McNeish
Eight-Time .NET MVP
VFP and iOS Author, Speaker & Trainer
Oak Leaf Enterprises, Inc.
Chief Architect, MM Framework
http://www.oakleafsd.com