Re-computing a displayed item

Environment: APEX 3.1.1.00.09 running on IBM RS6000 / AIX 5.3
apex.oracle.com:
Workspace: galway
User: gwicke
Password: gwicke
If you look at the above example, please just run page 2 as I have cut out a bunch of stuff. ;-)>
I have two (2) DATE items on the page that are originally populated with a DATEPICKER retruning format mm/dd/yyyy and represent a BEGIN_DT_DISPLAY and END_DT_DISPLAY. The business rules state that the dates must be the beginning and end of a calendar quarter respectively. I have an item, 'STD_DELTA_CONTRACT' that is a static SELECTLIST with a SUBMIT so I can see the effects of my computations.
The first computation is supposed to change the BEGIN_DT_DISPLAY to the first day of the quarter. The SQL is easy enough.
The second computation does the same thing for the end of the quarter and should redefine the END_DT_DISPLAY item.
There are several other computations that seem to work OK.
I can't seem to get the date items to be redefined and displayed after the SUBMIT issued by the SELECTLIST item.
I have played with this page for quite a while and several of the processes, etc. may be set to NEVER as a condition. I don't believe they effect the outcome I am looking for, but what do I know? If I was sure, I wouldn't be entering this post!! ;-)>
Also, I would like to have the page submitted after the END_DT_DISPLAY item is selected but I con't seem to find how to make the SELECTLIST issue the SUBMIT after a value is picked. Help please!!
Any assistance is greatly appreciated.
-gary
Edited by: gwicke on Sep 23, 2008 3:50 PM
Please run application 'BUILDERPL' on apex.oracle.com, sorry about that.

Gary,
I would suggest to:
1- RTFM! ;) Read the official doc. / whitepapers
2- search/read the forum (if it's basic like a submit on a field, the subject has already been discussed for sure)
3- search/read the blogs of the major APEX Players
4- practice (I am using APEX since version 1.5)
Hope you have fun with this great tool.
Louis-Guillaume

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