How to get another page item value in page process.

Hi all
i have an after submit process on page 32 to insert into a table.
and a page 34 where there is a region containing from page 32.
when page 32 get submitted (process as well as) it contain no value for :P34_USER_ID although i am in page 34 and :P34_USER_ID item have value.
after submit process on page 32 Type: PL/SQL anonymous block --> have code like...
INSERT INTO LETTER_ATTACH (LETTER_ID,FILENAME,ATTACHMENT,MIMETYPE,UPDATE_DATE)
SELECT :P34_USER_ID,:P32_FILE_INPUT,blob_content,mime_type,SYSDATE
FROM wwv_flow_files
WHERE NAME = :P32_FILE_INPUT;
can't find anything wrong...!!?? :(
please help me on this regards.
Roman
Edited by: user13416557 on Aug 27, 2011 1:48 PM

Hi,
When you are on page 32, check that there is value on page 34 item session state
http://download.oracle.com/docs/cd/E23903_01/doc/doc.41/e21674/concept_ses.htm#sthref100
Regards,
Jari

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