javascriptjquery-select2-4

Can't pre-select options in Select2 multiple choice select box


I use the select2 jQuery module to create a multiple choice select box. I did this in an early version (3.4.5) and it worked fine. But after upgrade to 4.1.0 pre-selection of an option does not work.

My code looks like below,

HTML - part:

<input type="text" id="accessories" />

JS:

jQuery(document).ready(function() {
   var acceArray2 = [{id:0,text:"textA"},{id:1,text:"textB"},{id:2,text:"textC"}];
        
   jQuery("#accessories").select2({
                        data: acceArray2,
                        multiple: true,
                        placeholder: "",
                        width: 200
                    });
   jQuery("#accessories").val("1");
   jQuery("#accessories").trigger("change");
});

My options show up when I click in the box. I can also select one or more option. But I expect "textB" should be selected when I open the page. This works fine with the original select2 version, but not with 4.1.0. The box is just empty.

I have spent hours trying to figure what's wrong, but I can't....


Solution

  • Alternatively, you can change the input tag to select. It seems to work below:

    jQuery(document).ready(function() {
      const acceArray2 = [{
        id: 0,
        text: "textA"
      }, {
        id: 1,
        text: "textB"
      }, {
        id: 2,
        text: "textC"
      }];
    
      jQuery("#accessories").select2({
        data: acceArray2,
        multiple: true,
        placeholder: "",
        width: 200
      });
      jQuery("#accessories").val("1");
      jQuery("#accessories").trigger("change");
    
    });
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <link href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css" rel="stylesheet" />
    <script src="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js"></script>
    
    <select id="accessories"></select>