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onchange / onclick in a checkbox doesn't work in IE

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忘掉有多难
忘掉有多难 2020-12-03 08:27

I have the following code, which works perfectly in Chrome/FF:

chkbx_send_demo.onchange = function(){
    if(sel_template.selectedIndex <= 0 && ch
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4条回答
  • 夕颜
    2020-12-03 09:21

    i faced the same issue on ie8, i used below trick to fix it. http://sleeplesscoding.blogspot.com/2010/01/fixing-ie-onchange-event-for-checkboxes.html

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  • 独厮守ぢ
    2020-12-03 09:23

    Are you sure onclick does not work? Did you check for javascript errors?

    The following works in IE7 (don't have IE6 to test)

    <html>
    <head>
       <script>
            function text()
            {
                alert(document.getElementById("cbxTest").checked);
            }
       </script>
    </head>
    <body>
        <input type="checkbox" name="cbxTest" id="cbxTest" onclick="text()"/>
        <label for="cbxTest"> Test </label>
    </body>
</html>

    Note: This is only for onclick. OnChange works differently in IE, see GOsha's answer.

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  • 爱一瞬间的悲伤
    2020-12-03 09:25

    Internet Explorer only fires the onchange event when the checkbox loses the focus (onblur). also see here:
    http://krijnhoetmer.nl/stuff/javascript/checkbox-onchange/
    and here:
    http://bytes.com/topic/javascript/answers/92116-onchange-checkbox

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  • 孤城傲影
    2020-12-03 09:28

    my JS code is now something like this:

    if(navigator.appName == "Microsoft Internet Explorer"){
            alert("IE");
            chkbx_send_demo.onclick = function(){
                alert("HI");
                if(sel_template.selectedIndex <= 0 && chkbx_send_demo.checked == true){
                    alert("Choose a Template");
                    sel_template.selectedIndex = 1;
                }
                if(chkbx_send_demo.checked == false){
                    alert("HI");
                    sel_template.selectedIndex = 0;
                }
                alert("HI");
            }
        }
        else
        {
            chkbx_send_demo.onchange = function(){
                if(sel_template.selectedIndex <= 0 && chkbx_send_demo.checked == true){
                    alert("Choose a Template");
                    sel_template.selectedIndex = 1;
                }
                if(chkbx_send_demo.checked == false){
                    sel_template.selectedIndex = 0;
                }
            }
        }

    No javascript errors, but the code just isn't executed on IE and i really can't understand why.

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