Session State Protectio Violoation in Apex 4.2 Page Items

Question

I'm testing my Apps that I upgraded from 3.2 to 4.2 and getting the message below and haven't been able to understand why.
Error Session state protection violation: This may be caused by manual alteration of protected page item P2_PAY_NO. If you are unsure what caused this error, please contact the application administrator for assistance
How the Page works.
1. Before Region Process runs that pre-populates some of my Text Items.
2. The user then has the ablibity to select from a select list item that will re-populate the items populated during the Before reqion based on the date selected.
I do this by calling the code below with an "onchange="javascript:date_populate(this);" on the HTML Form Elements Attributes.
{var myString = $x(pThis).value;
var mySplitResult = myString.split("|");
$x('P2_START_DATE').value = mySplitResult[0];
$x('P2_PAY_YEAR').value = mySplitResult[1];
$x('P2_PAY_NO').value = mySplitResult[2];
$x('P2_PICT_CODE').value = mySplitResult[3];
$x('P2_END_DATE').value = mySplitResult[4];}
3. When I submit the page I get the Session State Violation.
All Items have "Session State Proection" set to "Unrestricted"
Session State Protection is "Disabled" for the application.
Edited by: spuchc on Apr 12, 2013 2:07 PM

Answer 1

Check you are not updating items of type "Display Only".
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
http://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
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