Selectable optgroup using select2

Question

I have used select2 to select multiple options from a drop down, but is it possible for select2 to select the full optgroup?? What I want is when user select the option grou

Answer 1

First give id to your select for example

and then add class to your optgroup like

and then add this

$('#selectgroup').select2({

    }).on('select2-selecting', function (e) {
        debugger;
        var $select = $(this);
        if (e.val == undefined) {
            e.preventDefault();
            var childIds = $.map(e.choice.children, function (child) {
                return child.id;
            });
            $select.select2('val', $select.select2('val').concat(childIds));
            $select.select2('close');
       }
    });

If you click on optgroup then It will select all the options under the optgroup.

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