Laurent Laurent - 4 months ago 111
Javascript Question

Onchange event in a bootstrap checkbox

Good morning,

I am trying to intercept and handle changes in a bootstrap checkbox and I have added an 'onchange' event. Unfortunately, I was not successful. Currently, I have a button which can change the state of the checkbox and this is working.

Any hint would be much appreciated.

Thanks for your help.

Best wishes,
Laurent

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap Toggle</title>
<link href="./css/github.min.css" rel="stylesheet">
<link href="./css/bootstrap.min.css" rel="stylesheet">
<link href="./font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">
<link href="./css/bootstrap-toggle.css" rel="stylesheet">
<link href="./css/stylesheet.css" rel="stylesheet">
<script src="./js/jquery-2.1.3.min.js"></script>
<script src="js/bootstrap-toggle.js"></script>
</head>
<body>
<div id="events" class="container">
<h3>API vs Input</h3>
<p>This also means that using the API or Input to trigger events will work both ways.</p>
<div class="example">
<input id="chk1" type="checkbox" data-toggle="toggle" onchange="fonctionTest()">
<input id="chk2" type="checkbox" data-toggle="toggle">
<input id="chk3" type="checkbox" data-toggle="toggle">
<input id="chk4" type="checkbox" data-toggle="toggle">
<button class="btn btn-success" onclick="toggleOnOff('#chk1','on')">On by API</button>
<button class="btn btn-danger" onclick="toggleOnOff('#chk1','off')">Off by API</button>
<div id="console-event"></div>
<script>
$(function() {
$('input:checkbox').change(function() {
$('#console-event').html('Toggle: ' + $(this).prop('checked'))
})
})
</script>
<script>
function fonctionTest(){
console.log("This is a test");
}
function toggleOnOff(selector,state){
console.log("element : " + selector);
console.log($(selector).prop('checked'));
$(selector).bootstrapToggle(state);


}
function toggleOn() {
$('#chk1').bootstrapToggle('on');
isOnOrOff();
}
function toggleOff() {
$('#chk1').bootstrapToggle('off');
isOnOrOff();
}
function isOnOrOff(){
var c=document.getElementById('chk1');
console.log(c.checked);
}
</script>
</div>

</body>
</html>

Answer

Its working for all the checkboxes as shown in the examples below:

$('input:checkbox').change(function() {
  $('#console-event').html('Toggle: ' + $(this).prop('checked'));
  console.log("Change event: " + this.id);
})
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/js/bootstrap.min.js"></script>
<link href="https://gitcdn.github.io/bootstrap-toggle/2.2.2/css/bootstrap-toggle.min.css" rel="stylesheet">
<script src="https://gitcdn.github.io/bootstrap-toggle/2.2.2/js/bootstrap-toggle.min.js"></script>
<input id="chk1" type="checkbox" data-toggle="toggle">                
<input id="chk2" type="checkbox" data-toggle="toggle">
<input id="chk3" type="checkbox" data-toggle="toggle">
<input id="chk4" type="checkbox" data-toggle="toggle">
<div id="console-event"></div>

EDIT:

Add the code like:

<script>
  $(function() {
    $('input:checkbox').change(function() {
      $('#console-event').html('Toggle: ' + $(this).prop('checked'))
    })
  })
</script>
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