Validating portal row exit

[sandyinlet]

I'm looking for an efficient way to validate an exit of a portal row. Specifically I want to allow users to enter data into portal row fields in any order they want unencumbered. But if they exit the row completely, then I want to test whether the state and country fields have been left empty.

In FMP10 is there a way to do this? Much appreciated.

[IdealData]

Have you set the field validation in the field definitions?

This is probably the simplest method, however I personally have always scripted my validations - now FM10 offers script triggering then there maybe some future in that.

[sandyinlet]

Have you set the field validation in the field definitions?

This is probably the simplest method, however I personally have always scripted my validations - now FM10 offers script triggering then there maybe some future in that.

One thing bothers me about Field Validation in the Field Definitions. I don't want to bother the user as long as the portal row is active. Is that possible with Field Validation in the Field Definitions?

How might script triggering in FMP10 play a role?

Much appreciated.