How to update collection when checkbox changed in report

Question

I have a report based on a collection:
select seq_id
       ,c001
       ,c002
       ,apex_item.checkbox(1,seq_id,decode(c003,'J','CHECKED','UNCHECKED')) selected
from apex_collections
where collection_name='CONCOLLECTION'When the checkbox changes I want to store the new checked/unchecked status in the collection.
Steps towards a solution I've come up with:
1 Create a dynamic action: Change, jquery selector : input[name="f01"]
2 Create javascript to store value (=seq_id) of changed item into a hidden page item.
3 plsql code to update collection member with seq_id that is now in hidden item.
Is this the way to do it?
If so, it's the javascript of step 2 that I can't figure out.
thanks, René

Answer 1

thanks this works.
Using javascript I store the seq_id and the checked value in 2 page items
$s('P70_SEQ_ID', $(this.triggeringElement).val() );
$s('P70_CHECKED', $(this.triggeringElement.checked).val() );The checked value I get is <empty> when checked and 'undefined' when unchecked. Based on this I can now update the collection.
declare
  l_selectie varchar2(1);
begin
  if v('P70_CHECKED')='undefined'
  then
    l_selectie := 'N';
  else
    l_selectie := 'J';
  end if;
  apex_collection.update_member_attribute(p_collection_name => 'CONCOLLECTION'
                                             ,p_seq             => v('P70_SEQ_ID')
                                             ,p_attr_number     => 3
                                             ,p_attr_value      => l_selectie);
end;