I am still having problems with the DB access from the rules object. For one thing, in the detail screen, the dataset has only one record (either a new empty of an existing record), so I can't search for duplicates there.

Then I tried to use the HostObject, using the syntax shown on the documentation, and I get a type conversion error:

C:\Documents and Settings\Administrator\My Documents\Visual Studio Projects\MM Classic Business Library1\ARTISTRules.cs(83): Cannot convert type 'MM_CD_Tracker.ARTISTRules' to 'OakLeaf.MM.Main.Business.mmBusinessObject'

Thanks for your reply though.

Antonio Lozada