I built a drop-down ajax pager that replaces a tableselect with the requested page of rows. The array of selected item IDs is stored in a hidden field and that logic is working across entity load/save and AJAX replacements.

When the form initially loads, my tableselect #default_value operates correctly and checks the selected rows on the first page. But after AJAX paging through the big list to a different page and back, the checkboxes aren't checked again.

I think this has to do with #default_value only working before the form has been submitted. How can I reset the state so that my updated tableselect #default_value is used after AJAX?


2 Answers 2


Just before the tableselect's array in the form builder function, put the following code:

  • Wow dude I checked your solution. And it's the only one which is working. I just looked into this discussion (drupal.org/node/1458824) that this is actually a core bug. But your line and all is working fine. Great man. Thank you so much. :)
    – kwoxer
    Apr 5, 2016 at 12:59
  • Btw for me it was unset($form_state['input']['table']); because my table is called in another way. And I called it in the custom submit callback at the very begin.
    – kwoxer
    Apr 5, 2016 at 13:13

For those ones experiencing the same case in Drupal 8, this is the equivalent solution:

$user_input = $form_state->getUserInput();

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