How can I show a div if checkbox is ticked on Sharepoint designer?

Question

I don't know why this code won't work but when I check the checkbox it won't work. The div just remains hidden. I have done this before but this time it won't work.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<%@ Page Language="C#" %>
<!DOCTYPE html>
<html lang="en">
<head>
<meta name="WebPartPageExpansion" content="full" />
<meta charset="utf-8">
<title>jQuery Show Hide Using Checkboxes</title>
<script type="text/javascript" src="../SiteAssets/jquery-1.11.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
    $('input[type=checkbox]').change(function(){
        var checked = $(this).attr('checked');
        if (checked) {
           $('.other').show();             
        } else {
            $('.other').hide();
        }
    });        
});
</script>
</head>
<body>
<div name="main">

    <input type="checkbox" /> If this is checked display div
</div>
<div class='other' name='other' title='other' style='display:none;'>  
<h2>test</h2>
<input></input>
<input></input>
<input></input>
</div>
</body>
</html>

What am I doing wrong? I can't figure this out. Thanks.

Answer 1

As there is no attribute checked in checkbox. So it is returning undefined .You can directly access the property by this.checked .

  $(document).ready(function(){
        $('input[type=checkbox]').change(function(){
            var checked = this.checked;
            if (checked) {
               $('.other').show();             
            } else {
                $('.other').hide();
            }
        });        
    });

Answer 2

: ：

you are using attr that returns undefined

  var checked = $(this).attr('checked');
    if (checked) {    //here checked is not a boolean

Always remember

.prop('checked') returns

So use .prop() . Rest is fine .

Hope it help :)

How can I show a div if checkbox is ticked on Sharepoint designer?

Question

2 answers

solution1
1 ACCPTED 2015-01-27 11:26:00

solution2
0 2015-01-27 11:20:19

How can I show a div if checkbox is ticked on Sharepoint designer?

Question

2 answers

solution1 1 ACCPTED 2015-01-27 11:26:00

solution2 0 2015-01-27 11:20:19

solution1
1 ACCPTED 2015-01-27 11:26:00

solution2
0 2015-01-27 11:20:19