Capturing Workflow action

HI,
I am wondering how to capture an event from a workflow approval notification. I have created custom regions that are called from workflow to generate a custom page. I know that there is the standard notification pages with the pre-rendered buttons and the user may change some of the information within the notification prior to approval. I am wanting to validate the data as the "approval" button is clicked. I would like to avoid PPR on a lot of the fields and preferably do a one-stop validation.
Any thoughts appreciated.
Thanks,
Patrick.

What I am trying to do is capture an event when a notification is approved. I am working with the AP invoice workflow and have created some custom OA areas within the workflow. I need to validate some fields when the approve button is clicked. I want to avoid the use of PPR's if possible.
In one scenario, I have a comments OAMessageTextInputBean. This comments field is required in certain situations but not in others. I want to capture the event when a user approves, but has not filled in a comment then throw the appropriate error message. I know how to catch the event when it is on my own custom region but how do you catch the event when it is from the standard workflow approvals. The changes have to be done on the page in real time.
I know that you can get the button click, but irrespective of the action chosen from the workflow notification, the event name is "respond", however I need something more detailed.
Thanks.
Edited by: pburke on Dec 29, 2009 3:36 PM

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Question & Answers
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Hi
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