I am searching for a way, to fire the autocomplete event after 4 characters are in the input-field. What I am doing now is:

if(strlen($string) > 3) {

in my "page callback", but this is not the way I want it to work. Because now, the event is fireing, but only returns matches after 4 characters.

Is there a way to start the autocomplete only after the input?

  • Did you find a solution ? I need to do the same thing ...
    – Math666
    Jan 9, 2015 at 13:54

1 Answer 1


Check this answer : https://drupal.stackexchange.com/a/143720/30200

In short, you can defined a custom jquery event and associated it to your form_item. This event would fire only after a certain number of character

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