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How to prepopulate a field based on a previous field in the same form

  1. I've been looking around in the forums for a while and am using the code snippet from this post:

    http://www.gravityhelp.com/forums/topic/populate-field-from-previous-field

    This is my version of the code from functions.php, but it's not working:

    // update "108" to the ID of your form
    add_filter("gform_pre_render_2", "populate_previous_page_data");
    function populate_previous_page_data($form){
    
        $page_number = rgpost("gform_target_page_number_{$form["id"]}");
        $page_number = !is_numeric($page_number) ? 1 : $page_number;
    
        foreach($form['fields'] as &$field) {
    
            if($field['id'] != 42.5) // update "15" to the ID of the field you wish to be populated;
    
            $field_page = rgar($field, 'pageNumber');
    
            if($page_number > $field_page)
                continue;
    
            // update this to the ID of the field whose value you wish to call
            // '16.3' = example, first name of a Name field
            // '16.6' = example, last name of a Name field
            $field['defaultValue'] = rgpost('1');
        }
        return $form;
    }

    My form is here, and I'm trying to prepopulate the Zip code field on the last page with the value entered on the first page. Can someone help?

    Posted 9 years ago on Friday July 20, 2012 | Permalink
  2. tylerrum
    Member

    I'm trying to accomplish a similar goal but for a form on the same page as opposed to different pages. I have multiple sections on one form that are all identical but only show up (i.e., are conditional fields) when a user clicks "Add another property". I'd like these new property fields to autopopulate with the info put in for the previous property. I've read around a bit, but I'm definitely a rookie when it comes to editing PHP or figuring out where to post the code snippets I've seen and how to properly format them. Any help would be great.

    Posted 9 years ago on Friday July 20, 2012 | Permalink
  3. For copying the value between fields on the same page, please see this:
    http://www.gravityhelp.com/forums/topic/billing-same-as-shipping-address

    Posted 9 years ago on Saturday July 21, 2012 | Permalink

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