Why the function GetElementById is returning NULL in Salesforce?

Asked Oct 04 '16 at 09:07

Active Oct 04 '16 at 09:09

Viewed 23 times

This is my code, and always returns Null in the "if" sentence. The id exists. When I try to do document.getElementById in the console, it runs properly.

<apex:component>
  <script type="text/javascript">
    function refresh() {
      var run = document.getElementById('db_ref_btn');
      if (run == null) {
        alert('Por favor, añade un Informe a la página de Inicio.');
      } else {
        document.getElementById('db_ref_btn').click();
      }
    }
    window.onload = setInterval(refresh);
  </script>
</apex:component>

edited Oct 04 '16 at 09:09

Rajesh

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asked Oct 04 '16 at 09:07

Nikilonga

because element's ID is different. Use dev tools to check the ID of element if its same or different – Rajesh Oct 04 '16 at 09:10
Also I would point out, even if this did work,. your db_ref_btn is going to get some hammering with that setInterval.. – Keith Oct 04 '16 at 09:11
No, the ID is correct – Nikilonga Oct 04 '16 at 09:12
I would change the setInterval if it runs – Nikilonga Oct 04 '16 at 09:13
It's a bit hard to tell what the problem here without seeing the HTML, if you using chrome from the console, what does typing document.getElementById('db_ref_btn') return? – Keith Oct 04 '16 at 09:14
This is the return: – Nikilonga Oct 04 '16 at 09:18

Why the function GetElementById is returning NULL in Salesforce?

0 Answers0