jQuery on click open bootstrap modal and change select option

Question

I have a bootstrap modal with a select input element. on click of a button, I need to open up the modal and change the selection of a select element. Please see below JS fiddle link. How can I get this working?

JS Fiddle

<!-- Trigger the modal with a button -->
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>

<button id="audi" class="btn btn-primary btn-block" data-toggle="modal" data-target="#myModal">Open modal with Audi Selected</button>

<button id="mercedes" class="btn btn-primary btn-block" data-toggle="modal" data-target="#myModal">Open modal with Mercedes Selected</button>

<!-- Modal -->
<div id="myModal" class="modal fade" role="dialog">
    <div class="modal-dialog">

        <!-- Modal content-->
        <div class="modal-content">

            <div class="modal-body">
                <select id="selection">
                    <option value="volvo">Volvo</option>
                    <option value="saab">Saab</option>
                    <option value="mercedes">Mercedes</option>
                    <option value="audi">Audi</option>
                </select>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div>

JS

this.$("#audi").click(function() {
    $("#myModal #selection option[value='file']").attr('selected', 'selected');
});

Answer 1

Since button's id matches with select option value, you can set this element's id as the value of the select element.

Try the following way:

 $("#audi,#mercedes").click(function() { var idAsValue = $(this).attr('id'); $("#selection").val(idAsValue); }); 

 .btn-info { margin-bottom: 50px; } 

 <link rel="stylesheet" type="text/css" href="/css/result-light.css"> <script type="text/javascript" src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script> <link rel="stylesheet" type="text/css" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script> <script type="text/javascript" src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> <link rel="stylesheet" type="text/css" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <!-- Trigger the modal with a button --> <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button> <button id="audi" class="btn btn-primary btn-block" data-toggle="modal" data-target="#myModal">Open modal with Audi Selected</button> <button id="mercedes" class="btn btn-primary btn-block" data-toggle="modal" data-target="#myModal">Open modal with Mercedes Selected</button> <!-- Modal --> <div id="myModal" class="modal fade" role="dialog"> <div class="modal-dialog"> <!-- Modal content--> <div class="modal-content"> <div class="modal-body"> <select id="selection"> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="mercedes">Mercedes</option> <option value="audi">Audi</option> </select> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> </div> </div> 

Answer 2

try this

$(".btn").click(function() {
     $('#selection').val($(this).attr('id'));
});

DEMO HERE

Answer 3

Try this..

 this.$(".btnCustom").click(function() { var value = $(this).attr('id'); $("#myModal #selection option[value="+value+"]").attr('selected', 'selected'); }); 

 .btn-info { margin-bottom: 50px; } 

 <link rel="stylesheet" type="text/css" href="/css/result-light.css"> <script type="text/javascript" src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script> <link rel="stylesheet" type="text/css" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script> <script type="text/javascript" src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> <link rel="stylesheet" type="text/css" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <!-- Trigger the modal with a button --> <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button> <button id="audi" class="btn btn-primary btn-block btnCustom" data-toggle="modal" data-target="#myModal">Open modal with Audi Selected</button> <button id="mercedes" class="btn btn-primary btn-block btnCustom" data-toggle="modal" data-target="#myModal">Open modal with Mercedes Selected</button> <!-- Modal --> <div id="myModal" class="modal fade" role="dialog"> <div class="modal-dialog"> <!-- Modal content--> <div class="modal-content"> <div class="modal-body"> <select id="selection"> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="mercedes">Mercedes</option> <option value="audi">Audi</option> </select> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> </div> </div>