Is there any way to hook into the SQL report pagination process?

Question

I have a SQL report (based on EMP) with a radiogroup row selector.
The scenario 1 and 2 are in place
1) When the employee row radio group is clicked the P900007_JOB the text item is populated with the JOB for the employee.
2) When the page is initially displayed or submitted via the button the first row’s radio group is programmatically clicked and therefore populates the additional job information in P900007_JOB
Info (radio Group) Employee No Name
(+) 7369 SMITH
() 7499 ALLEN
() 7521 WARD
P900007_JOB CLERK
1-3 Next>
Once the report has been displayed and the next or previous pagination is used then none of the radio groups will be selected and the data in the P900007_JOB text item will still display the job of the last selected employee row.
What I require is on pagination some sort of mechanism to either
a) Call the page_init() that should then set the first row as selected and populate the text item via the programmatic click. (preferred option)
b) OR blank out the additional text item P900007_JOB.
Is there any way to hook into the pagination process?
I have a work around – Set the ‘Enable Partial Page Refresh’ to ‘No’ but this means a full refresh every time the pagination is used.
Details of my page
Report Region (Based on EMP table) – radio group as a row selector
select     APEX_ITEM.RADIOGROUP(1,EMPNO,'X21',null) CHECKRG, EMPNO,
     ENAME,
     JOB
from     EMP
Report Attributes -
Report template :- P900007_ROWTEMPLATE (custom template see later)
Report Attributes Substitution :- id="emp_report" (used in page_init see later)
Enable Partial Page Refresh :- Yes
Columns – All columns are selected as show but job is left out of the template below.
P900007_JOB - Text item in report region (disabled does not save state). Populated with the employees job when the radio group is clicked.
Control region :- HTML region that just holds a button <GO> just to submit the page and redirect back to the same page.
P900007_ROWTEMPLATE (named column row template)
Row template 1
<tr style="cursor: hand; cursor: pointer;" onmouseover="row_mouse_over(this, 1)" onmouseout="row_mouse_out(this, 1)" #HIGHLIGHT_ROW# ">
<td class="t15data" onclick="selectRow('#JOB#');">#CHECKRG# </td>
<td class="t15data">#EMPNO# </td>
<td class="t15data">#ENAME# </td>
</tr>
Before rows
<table class="t15standard" summary="" #REPORT_ATTRIBUTES# id="report_#REGION_STATIC_ID#" >
<th class="t15header" #ALIGNMENT# >Info</th>
<th class="t15header" #ALIGNMENT# >Employee Number</th>
<th class="t15header" #ALIGNMENT# >Name</th>
After Rows
<tr>
<td colspan="99" class="t15afterrows">
<span class="left">#EXTERNAL_LINK##CSV_LINK#</span>
<table style="float:right;text-align:right;" summary="pagination">
#PAGINATION#</table>
</td>
</tr>
</table>
*Javascript in page Header*
<script src="#WORKSPACE_IMAGES#apex_show_hide_region.js" type="text/javascript"></script>
<script language="JavaScript" type="text/javascript">
<!--
function selectRow(pJob)
/* console.log('pete got here!'+pJob)*/
$x('P900007_JOB').value =pJob;
/* Start Page init*/
function *page_init*()
/* Used to set radio groups on reports */
/*console.log('START pete got here!');*/
var is_checked = false;
var l_check = $x_FormItems($x('emp_report'), 'radio');
/*Loop and set flag if checked*/
for(var i=0,len=l_check.length;i<len;i++)
if(l_check.checked){
is_checked = true;
/*end loop*/
/*If none checked force a click*/
if(!is_checked){
/*no longer need as doing click below*/
l_check[0].checked=true;
/*Force a click on the first radio group - extra details should then be
populated*/
var l_click = l_check[0].click();
/* console.log('END pete got here!');*/
/*END page_init*/
// -->
</script>
*Application shared component.* – This fires a DB packaged procedure when the page is loaded.
P330_PART_NO_HIST
Process Point On load after Body region
Process Text show_hide_memory.part_no_history_details();
*Packaged Procedure* – This kicks off the page_init javascript in the header (earlier) to click on the radio group in the first row.
PROCEDURE part_no_history_details AS
BEGIN
htp.prn('<script type="text/javascript">' || CHR(10));
htp.prn('<!--' || CHR(10));
htp.prn('page_init();'|| CHR(10));
htp.prn('//-->' || CHR(10));
htp.prn('</script>' || CHR(10));
END part_no_history_details;
Thanks Pete
Edited by: Pete @ LSC on 26-Jan-2010 06:56

Answer 1

Anybody any ideas? Should I be looking down the route of using my own pagination buttons and adding my code to this?
There seems to be a routine $a_report that I can use for the pagination but I am finding it difficult to get the current first and last record values that I would need to pass. I've seen references to below in the form but when I'm using partial refresh they do not seem to change.
wwv_flow.g_flow_current_min_row
wwv_flow.g_flow_current_max_rows
wwv_flow.g_flow_current_rows_fetched
wwv_flow.g_request
Thanks Pete