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Explicitly set default radio choice using hook

  1. Hello,

    Might be right in front of my face, but I haven't found a way to get this working. I'd like to dynamically set the default radio button selection using a hook like gform_pre_render. I've be trying things along the lines of the attached code.

    Essentially, I could use help understanding how to force the form to have a choice (doesn't matter which) selected upon page load. If I can get there, I believe I can take it the rest of the way myself. Any help is much appreciated!

    add_filter( "gform_pre_render_3", "set_default_dynamically" );
    function set_default_dynamically($form) {
        foreach( $form["fields"] as $field ){
            if( $field["id"] == 4 ){
               $field["choices"][0]["isSelected"] = 1;
        return $form;
    Posted 9 years ago on Thursday January 31, 2013 | Permalink
  2. I ended up using a bit of javascript to make this happen. If there is a way of doing it through a hook when the form loads, I'd still be interested in knowing it. Thanks!

    Posted 9 years ago on Friday February 1, 2013 | Permalink
  3. I tried a couple things with this and made this code work:

    I looped through each radio button choice. I don't know if that matters or not. I discovered if I had a selection made in the form builder and I was trying to set an earlier option as selected, the later one would always render as selected. So I clear out all the other isSelected choices.

    I tested for the value of the radio button choice before making it selected. Not sure if that will work in your situation.

    I also used "true" instead of "1", but I'm not sure if that mattered.

    This code worked for me. Let me know if anything in there helps you.

    Posted 9 years ago on Saturday February 2, 2013 | Permalink
  4. Thanks! I may prefer your solution over the javascript I am currently using. I'll most likely test it out this afternoon. At a minimum, your example gives me better insight into how to work with the Field Object, so that is great. Thanks again!

    Posted 9 years ago on Monday February 4, 2013 | Permalink
  5. You're welcome. I learned something in the process too.

    Posted 9 years ago on Tuesday February 5, 2013 | Permalink
  6. Just wanted to drop you one last note to let you know that your solution was absolutely perfect for my needs, and I went ahead and used it in favor of the js that I wrote. Feels cleaner to set the correct radio button before the form renders, and the js that I put in place would sometimes have a slight delay before setting the radio button correctly (though the fact that I noticed it was probably more due to the slow server I am building this project on).

    Posted 9 years ago on Tuesday February 5, 2013 | Permalink
  7. Great. Thanks very much for the update. Let us know if you need any more help going forward.

    Posted 9 years ago on Tuesday February 5, 2013 | Permalink