Select list based on another list select
HelloI have two selection list Position Type and post Code. I' of love to drive position with the selected item category code. I created On-Demand process, Javascript aan and onchange appeal of the type of post.
Application process: POPULATE_SELECT
DECLARE
l_posn_type varchar2 (4000);
BEGIN
l_posn_type: = wwv_flow.g_x01;
OWA_UTIL.mime_header (' text/xml', FALSE);
HTP.p ('Cache-Control: non-cache');
HTP.p ('Pragma: non-cache');
OWA_UTIL.http_header_close;
HTP.prn ("< select > '");
FOR rec IN (select posn_cd from the apex_posn_mstr where posn_typ = l_posn_type)
LOOP
HTP.prn ("< option value ="' | rec.posn_cd |) ""(>' || ' < / option >'); "
END LOOP;
HTP.prn ("</select > '");
END;
< script type = "text/javascript" >
function get_AJAX_SELECT_XML (pThis, pSelect)
{
var l_Return = null;
var l_Select = $x (pSelect);
get var = new htmldb_Get (null, $v ('pFlowId'), 'APPLICATION_PROCESS is POPULATE_SELECT', 0);
get.addParam ('x 01', $v (pThis));
gReturn = get.get ('XML');
If (gReturn & & l_Select)
{
var l_Count = gReturn.getElementsByTagName("option").length;
Alert (l_Count);
l_Select.length = 0;
for (var i = 0; i < l_Count; i ++)
{
var l_Opt_Xml = gReturn.getElementsByTagName ("option");
/ * Function to add to select call does not work. How to debug it * /.
appendToSelect (l_Select, l_Opt_Xml.getAttribute ('value'), l_Opt_Xml.firstChild.nodeValue);
}
}
get = null;
}
function appendToSelect (pSelect, pValue, pContent)
{
var l_Opt = document.createElement ("option");
l_Opt.value = pValue;
If (document. All)
{
pSelect.options.add (l_Opt);
l_Opt.innerText = pContent;
}
on the other
{
l_Opt.appendChild (document.createTextNode (pContent));
pSelect.appendChild (l_Opt);
}
}
< /script >
Attribute of the HTML form element: P16_POSN_TYPE:
OnChange = "get_AJAX_SELECT_XML (This, 'P16_POSN_ID')" "
The call to appendToSelect (l_Select, l_Opt_Xml.getAttribute ('value'), l_Opt_Xml.firstChild.nodeValue) does not work. Any ideas? How to debug this? We can print out the gReturn to see what is returned?
Have you tried to change the POPULATE_SELECT process, where the HTML is generated for the option list?
My knowledge of HTML isn't fantastic, but try replacing:
HTP.prn (')
with:
HTP.prn (')
Tags: Database
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