Dynamically load Popup LOV

Question

<p>I need to load a Popup LOV with values filtered by a previous selection in a standard Select List. I need to do it without submitting the page to place the filtering LOV's value into session state (I've got other things happening on submit). </p>
<p>I've used Carl's cool AJAX solution for standard Select Lists. Is there a similar method that will work when the target LOV is a Popup?</p>
<p>thanks, </p>
Mark

Answer 1

A select list (dropdown) is part of the page when it is rendered, that is why the AJAX stuff is needed to replace the dependent dropdown lists.
With popup LOVs, it is much simpler because the popup LOV query is not run until you click on the popup icon.
If the popup LOV query refers to session state (:P1_ITEM), all you need to do is set the session state using the AJAX snippet.
Put onchange="foo(this);" into the HTML Form Element attributes of the first select list (say P1_ITEM) and use something like
function foo(pSelect)
var l_select=html_SelectValue(pSelect);
var get=new htmldb_Get(null,html_GetElement('pFlowId').value,'APPLICATION_PROCESS=null',0);
get.add('P1_ITEM',l_select);
get.get();
get=null;
}"null" is a on-demand Application Process that does nothing. A PL/SQL block with just "null;"
That's it. Now when you click on the popup LOV, it will get the latest value of P1_ITEM in session state in its defining query.
Hope this helps.