> I'd like to assign a procedure to OnAfterModified event of IB_Column.
> Any clues how to do this (especially construction of procedure and it's
> parameters)?

You have to do it in the AfterPrepare event in run-time code.

You have the source for the rest of what you need to know.

Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com