Autocomplete text field

What you're describing is typically called an autocomplete-textfield. No, this isn't possible with Webform. Most users that fill out Webforms are usually anonymous, meaning it couldn't autocomplete useful information most of the time. Fields between different forms are also not possible to map to each other, so Webform has no idea which fields are "Address" and which ones are "First name" for example, so it'd have no way to autocomplete a value from one form on a different one.

It is not possible with form_alter by adding an #autocomplete_path to a webform textfield ?
I've tried something like that :

function bgcercle_form_webform_client_form_8628_alter(&$form, &$form_state) {
  $form['submitted']['restaurant_concerne']['nom_du_restaurant']['#autocomplete_path'] = 'etablissement_name/autocomplete';
}

And it still does not work.

function bgcercle_form_webform_client_form_8628_alter(&$form, &$form_state) {
  //kpr($form['submitted']['restaurant_concerne']['nom_du_restaurant']);
  $form['submitted']['restaurant_concerne']['nom_du_restaurant']['#default_value'] = 'test';
}

is working...

Sorry, it works. It was a css problem (hide trobber).

Closing as support with custom coding is not provided in the Webform issue queue. Perhaps you'd have better luck trying to contact cyprien2 directly.

As I'm here: you can google for solutions in both D6 and D7; I also have a reply on StackExchange with links. If you find it and it's helpful, please put the links here (I'm rushing ATM).

>support with custom coding is not provided in the Webform issue queue.

We really need a functionality that allows issues to remain for general community support, but that clearly marks them outside the (self-defined) responsibility of the maintainers. I'll ping the Support Team group ;)