LOV in detail block

I am facing a problem in Oracle Forms. I have a master block and a detail block. Both in a different tab. In my master block I have a LOV, no problem here, works fine. Now I am trying to pop up a LOV in my detail block. But no success here.

At first it showed with all possible values for the detail, disregarding the choice made i开发者_如何学运维n the master block. Turned out to be a mistake in my master-detail relation. Made some changes on my master-detail relation and now it 's simply not showing. But I can browse the correct records using the arrows.

Can someone point me out what could be wrong?

In addition I could use a good online tutorial that goes beyond displaying a record.

I would greatly appreciate any help.

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Not sure exactly what your problem is, but - on the LOV do you have Automatic Refresh set to Yes? If not, it will only execute the query to populate the LOV the first time it is opened.