Dynamic Region - Item value turns to NULL

Question

Hi,
I have a dynamic region which has some APEX_ITEM.CHECKBOX items in it. I count the checkbox groups and write it into a hidden object as like this.
In the last row of the code i want to insert the count into P65_CNT_QUESTIONS hidden item.
But when i submit the page i always get NULL from the P65_CNT_QUESTIONS item.
Before i submit the page i see the correct value in the session but when i submit, it turns to null.
I am getting crazy Whats the problem with it. Any suggestion?
System: MS7 - XE - Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product - Apex 4.0
declare
cursor c_h is select distinct qh.nquestion_header_id, vquestion_header from tquestions q, tquestion_headers qh
where q.nquestion_header_id = qh.nquestion_header_id order by 1;
cursor c_ans is  select nparam_id,vparam  from TQUESTION_PARAMS order by 1;
l_cnt number := 0;
l_hid number := 0;
l_br varchar2(10) := '<br/>';
l_tab varchar(50) := '      ';
l_de varchar2(1000);
l_hea_cnt NUMBER := 1;
l_que_cnt NUMBER := 1;
begin
FOR rec_c in c_h LOOP
htp.p(l_br||'<b>'|| l_hea_cnt || '-' ||rec_c.VQUESTION_HEADER||'</b>');
  FOR rec_q in
      (SELECT q.nquestion_id, q.vquestion FROM tquestions q where q.nquestion_header_id = rec_c.nquestion_header_id order by q.nrow_order)
  LOOP
    htp.p(l_br|| l_br ||'<div align="left">'|| l_tab ||l_que_cnt || '-' ||rec_q.VQUESTION||'</div>'||l_br );
    FOR rec_ans in c_ans LOOP
       htp.p(l_tab||APEX_ITEM.RADIOGROUP(
       l_que_cnt ,rec_ans.nparam_id,null,rec_ans.vparam));
    END LOOP;
    l_que_cnt := l_que_cnt +1;
  END LOOP;
  htp.p(l_br||l_br ||'<div><b>ARA ORTALAMA</b></div>'); 
  FOR rec_ans in c_ans LOOP
       htp.p(l_tab||APEX_ITEM.RADIOGROUP(
       l_que_cnt ,rec_ans.nparam_id,null,rec_ans.vparam
   END LOOP;
   l_que_cnt := l_que_cnt +1;
   l_hea_cnt := l_hea_cnt +1;
END LOOP;
htp.p(l_br||l_br ||'<div><b>GENEL ORTALAMA</b></div>'); 
FOR rec_ans in c_ans LOOP
   htp.p(l_tab||APEX_ITEM.RADIOGROUP(
       l_que_cnt ,rec_ans.nparam_id,null,rec_ans.vparam
END LOOP;
    :P65_CNT_QUESTIONS := l_que_cnt ;
END;

Answer 1

You need to set "Page items to submit" to be "P2_SCHEME_CAT_CODE"
This pulls the value from the browser and sets it within session state, thereby making it available to your PL/SQL
Regards,
Scott
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