Cascading Text Boxes in Tabular Form

Question

Hello Gurus,
I have a Cascading Select List in a Tabular Form made with APEX_ITEM.
My Tabular Form is like this: Col1[select list], Col2[select list], Col3, col4 .
Now :- I would like Col2 to be made as a TEXT BOX as opposed to SELECT LIST. But this TEXT BOX should still be populated "On Change" of Col1 and the TEXTBOX should be editable.
I saw another function called: TEXT_FROM_LOV_QUERY but I can not set the item_id [to use in HTML HEAD Java Script Function & Application Process] as the signature of the function does not support.
APEX_ITEM.TEXT_FROM_LOV_QUERY (
    p_value       IN    VARCHAR2 DEFAULT NULL,
    p_query       IN    VARCHAR2,
    p_null_text   IN    VARCHAR2 DEFAULT '%')
    RETURN VARCHAR2;Please point me to any relevant examples.
Appreciate any help in this regard. Please let me know if I could not explain my problem well.

Answer 1

Hi Jari,
Thanks a lot for your suggestions.
I did make some changes and here is the code I have all together..
Region Source to display the page:
SELECT apex_item.hidden(45,LINE_NO)
  || apex_item.select_list_from_query(46, TRANSACTION_ID, 'select transaction_name,transaction_id from cap_plan_std_business_tran where technology_id=1', 'style="" '
  || 'onchange="SetTXTitem(this,'
  || 'f47_'
  || LPAD (LINE_NO, 4, '0')
  || ')"', 'YES', '0', '- Select Transaction -', 'f46_'
  || LPAD (LINE_NO, 4, '0'), NULL, 'NO' ) TRANSACTION_ID,
  apex_item.TEXT(47, SLA, NULL,NULL,'style=""', 'f47_'  || LPAD (LINE_NO, 4, '0'), NULL) SLA,
  apex_item.text(48,TRANSACTIONS_PER_PEAK_HOUR) TRANSACTIONS_PER_PEAK_HOUR
FROM cp_std_trans_details
WHERE cap_plan_id = 1
UNION ALL
  SELECT apex_item.hidden(45,NULL)
  || apex_item.select_list_from_query(46, NULL, 'select transaction_name,transaction_id from cap_plan_std_business_tran where technology_id=1', 'style="" '
  || 'onchange="f_set_casc_sel_list_std_item(this,'
  || 'f47_'
  || LPAD (9900 + LEVEL, 4, '0')
  || ')"', 'YES', '0', '- Select Transaction -', 'f46_'
  || LPAD (9900 + LEVEL, 4, '0'), NULL, 'NO' ) TRANSACTION_ID,
apex_item.TEXT(47, NULL, NULL,NULL,'style=""', 'f47_'  || LPAD (LEVEL, 4, '0'), NULL) SLA,
apex_item.text(48,NULL) TRANSACTIONS_PER_PEAK_HOUR
FROM dual
  CONNECT BY LEVEL = 2the below is my Javascript source:
<script language="JavaScript" type="text/javascript">
function f_set_casc_sel_list_std_item(pThis,pSelect){
        alert('from function');     
    var l_Select = html_GetElement(pSelect);
    var get = new htmldb_Get(null,$x('pFlowId').value,
              'APPLICATION_PROCESS=tab_casc_txt_sla',0);
    get.add('TAB_CASCADING_ITEM_TXTSLA',$x(pThis).value);
    gReturn = get.get('XML');
    alert(gReturn);
    if(gReturn && l_Select){
         $x_Value(l_Select,gReturn);
    get = null;
</script>I have created a APPLICATION ITEM with this name : 'TAB_CASCADING_ITEM_TXTSLA'
and below is the application process source:
DECLARE
   v_counter   NUMBER := 0;
   v_sla number;
BEGIN
   OWA_UTIL.mime_header ('text/xml', FALSE);
   HTP.p ('Cache-Control: no-cache');
   HTP.p ('Pragma: no-cache');
   OWA_UTIL.http_header_close;
     SELECT COUNT (*) OVER () sla_count, sla
       INTO  v_counter,v_sla
               FROM cap_plan_std_business_tran
              WHERE transaction_id= :TAB_CASCADING_ITEM_TXTSLA
       IF v_counter = 1
      THEN
         HTP.prn (v_sla);
      END IF;
      IF v_counter != 1
      THEN
         HTP.prn ('un defined');
      END IF;
END;but some thing should still be wrong and it does not work .. can you please check ...