Post Element Text - Checkbox

Question

Apex 4.0.2
Suppose I use the Post Element Text attribute of a page item to render a checkbox using <input type="checkbox" .... and a dynamic action to save its state to a database table. I am sure this will work fine but when the page loads how do I go about setting the value of all these checkboxes?
Any ideas? Thanks

Answer 1

Hello Vikas,
>> I am sure this will work fine but when the page loads how do I go about setting the value of all these checkboxes?
The trick is to use a checkbox that has the same ID and value. Remember that only checked checkboxes are submitted to the server. You can look at the following for a simple example:
http://htmldb.oracle.com/pls/otn/f?p=52616:30
Now for some code. I’m using the following as the post-element content for the first checkbox:
   <input type="checkbox" name="f50" id="CB1" value="CB1">Option 1<br />The HTML name will remain the same for all checkboxes; however, the ID and value should be different for each extra checkbox (e.g. CB2, CB3m etc.). In this example, the checked checkboxes will be populated, at submit time, into the G_F50 array. Of course, you can use any other available G_Fxx array.
I’m using the following table to save the checkboxes state:
CREATE TABLE  "CB_STATE"
   (     "PAGE" NUMBER(4,0) NOT NULL ENABLE,
     "VALUE" VARCHAR2(4) NOT NULL ENABLE
   ) ;For saving the checkboxes state, I’m using the following after submit PL/SQL process:
delete from cb_state
where page = :APP_PAGE_ID;
for i in 1..apex_application.g_f50.count loop
  insert into cb_state
  values(:APP_PAGE_ID, apex_application.g_f50(i));
end loop;For setting the checkboxes state, while rendering the page, I’m using the following Before Footer PL/SQL process:
htp.p('<script type="text/javascript">');
for x in (select * from cb_state
          where page = :APP_PAGE_ID) loop
  htp.p('$x('''||x.value||''').checked = true;');
end loop;
htp.p('</script>');I’m sure you can translate the last snippet of code to a Dynamic Action. If you do, please post it in here.
Regards,
Arie.
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