BIP (OBIEE 11.1.1.7): Validate Parameter Values

Hello,

With Oracle Reports, in Before Parameter Form Trigger I could default some parameter values, then, in the After Parameter Form trigger I could do some validations on parameter values entered by user and either return TRUE, in which case report progressed to fetch data etc., or return FALSE with an SRW.MESSAGE so that the user would see an error message in the browser. (reports run in non-EBS environment, but part of OAS 1Og).

In BIP, as far as I can tell

- There is no equivalent to Before Parameter Form trigger, so I cannot run any defaulting logic. Is there a workaround for this?