Select2 not working inside bootstrap modal

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I am trying to use select2 inside bootstrap modal but it is not getting the focus automatically as well as down and up arrows are not working for the populated list.

The same select2 works when I put it outside the modal popup.

When I searched, I found many are facing this same problem and found this post

Select2 doesn't work when embedded in a bootstrap modal

I implemented both the solutions from it

  1. Removed tabindex from modal popup.
  2. Commented code of enforceFocus function in modal.js file.

But it is still not working! Any idea what I could still be missing?

Edit1

It works on firefox when tabindex is removed from the modal div but not with IE9

Edit2

I found that removing tabindex is actually not getting recognized by IE9 because I can still hide the popup by escape key in IE but not in Firefox.

13 Answers

Use bellow code. This will solve your bug.

$('select').select2({
    dropdownParent: $('#my_amazing_modal')
});

the attribute tabindex='-1' in bootstrap modal prevents any element outside modal being reachable or focused by tab key. It is useful for limit tabs only on modal, for accessibility. But elements created by selec2 are children of document. You need to set dropdownParent to your modal

$(document).ready(function() {

    $("select").select2({dropdownParent: $("#myModal")});

    $('[data-toggle=offcanvas]').click(function() {
      $('.row-offcanvas').toggleClass('active');
    });
  


});
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <title>JS Bin</title>
  <link href="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css" rel="stylesheet" />
  <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.2/css/bootstrap.css" rel="stylesheet" />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.2.0/js/tether.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.2/js/bootstrap.js"></script>

</head>
<body>
  <a href="" data-target="#myModal" data-toggle="modal">Convert to popup</a>
  <div class="modal fade" id="myModal" tabindex="-1" role="dialog">
    <div class="modal-dialog" role="document">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal" aria-label="Close">
            <span aria-hidden="true"><i class="fa fa-close"></i></span>
            <span class="sr-only">Close</span>
          </button>
          <h4 class="modal-title" id="myModalLabel">Bootsrap4 Modal Label</h4>
        </div>
        <div class="modal-body">
    <div id="PopupWrapper">
            <select class="form-control">
              <option>red</option>
              <option>blue</option>
              <option>green</option>
              <option>orange</option>
              <option>yellow</option>
            </select>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>

jsbin example

meaning of tabindex=-1

$('#dropdownid').select2({
  dropdownParent: $('#modalid')
 });

Above code works for me, try this.

Dear all no need to take tabindex="-1" out there simple CSS solution. Here we go:

.page-body .select2-drop {z-index: 10052;}
.select2-drop-mask {z-index: 10052;}

And you are done. :)

$('.select2-with-search').select2({
      placeholder: 'Choose one',
      searchInputPlaceholder: 'Search options',
   dropdownParent: $('.modal')
   });

us this <div class="modal"

<div class="modal fade" id="createModal" role="dialog" aria-hidden="true"  data-backdrop="">
   <div class="modal-dialog modal-dialog-centered modal-lg" role="document">
      <div class="modal-content">

and use this <select class="form-control select2-with-search"

<select class="form-control wd-250 select2-with-search">
                     <option label="Choose one"></option>
                     <option value="Firefox">Firefox</option>
                     <option value="Chrome">Chrome</option>
                     <option value="Safari">Safari</option>
                     <option value="Opera">Opera</option>
                     <option value="Internet Explorer">Internet Explorer</option>
                  </select>

All answers here didn't work for me, but this one is good:

  $('#modal-window').on('shown.bs.modal', function (e) {
    $("#select-box").select2({
      placeholder: "Select...",
      theme: "bootstrap",
      language: "en"
    });
  })

Wrap it inside

$(document).on('ready turbolinks:load', function() {...}

if you use turbolink.

Just use data attribute settings: data-dropdown-parent="#bs-modal-id"

<select class="form-control" data-dropdown-parent="#bs-modal-id"></select>
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