> Given this sitation, where is the correct place for me to
> update these links automatically? Which event should I
> use to assign the field value?

I dont think I really understand what you are doing, however you may
find that using parameters (via MasterParamLinks) gives you the
control that you want. If that does not work then you are probably
stuck writing the master-detail mechanism yourself - a simple
implementation should not be too difficult using events available on
datasource etc.

HTH

Geoff Worboys
Telesis Computing