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why cannot I use hidden or display only item to store value for insert?

lxiscasApr 9 2013 — edited Apr 11 2013
hi, Gurus:

I have a question:

I implemented a form with report region in a page, the update works OK, but the add function has a problem:

There is a column, offender_ID, which is a foreign key for another table, it should not be null during insert. However, even I pass the offender ID from master page when user click the create button, and it did shows in the form, it must be a text filed to insert successfully, why cannot I use hidden or display only item to store this value for insert? (If I use hidden or display only item, insert won't be successful, apex reports I tried to insert a null value to offender_ID column.)

Many Thanks in advance.

Sam
This post has been answered by Howard (... in Training) on Apr 9 2013
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Locked on May 9 2013
Added on Apr 9 2013
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