Events in Table Maintenance - How validate fields and deliver error message

Simple transparent table. I have generated one step table maintenance. I use a view variant to make some fields display only. I would like to use Events to provide some validation. For example: If field STATUS = 'T', then field QUANTITY must be > 0.
So far, I have tried events 05 and 21. When the user tries to enter a new row, I can issue an error message that is returned to the screen. The problem is that the screen is no longer typeable, i.e. the user cannot correct the error. They have to exit and start over.
Is there a different event or different coding I should provide to open up the screen for typing?

Hi,
Tried 'message type 'I' display like 'E''', in event 5 and 21. The non-key fields are now typeable but the validation is not enforced, i.e. you get a message that you must enter a QUANTITY but you can save the row without entering a QUANTITY.
Yes I was afraid of that... that's why I would use the event 01 (with 05, if user still tries to save invalid entries, 01 will block). Normally when you get the error and press the ENTER key, you should get back to your table in edit mode... Well this is happening on my system...
I'll let you know if I got a better idea...
Kr,
Manu.
Edited by: Manu D'Haeyer on Nov 10, 2011 5:01 PM

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