No, no chance. A calculated Field ist allways readonly.
(hardcoded in TIB_Statement.GetReadOnly(...) )

I changed the code there, introduce a new constant as a FieldAttribute.

I will email you the code changes, so that you can decide, if to put
in the next release.

Andreas Hesse

--- In IBObjects@yahoogroups.com, jwharton@i... wrote:
> Give it the column attribute of COMPUTED and then I think you can
mess around with it as your are hoping to.
>
> Let me know how it goes.
>
> Jason Wharton
>