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10.17.2007 at 10:36AM PDT, ID: 22899705
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fireEvent('onChange') in FireFox
Zone: JavaScript
Tags: firefox, fireevent, onchange
I have some code that programatically fires an onchange event like:

document.Myform.MyTextField.fireEvent('onChange');

works fine in IE but not in FireFox. Can anyone tell me how to make it work in FireFox?
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Question Stats
Zone: Programming
Question Asked By: SBennett
Solution Provided By: b0lsc0tt
Participating Experts: 1
Solution Grade: A
Views: 239
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10.17.2007 at 10:52AM PDT, ID: 20095506

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10.17.2007 at 11:40AM PDT, ID: 20095870

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10.17.2007 at 11:57AM PDT, ID: 20096001

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10.17.2007 at 12:59PM PDT, ID: 20096514

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10.17.2007 at 01:10PM PDT, ID: 20096614

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10.17.2007 at 01:14PM PDT, ID: 20096650

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10.17.2007 at 01:47PM PDT, ID: 20096923

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10.17.2007 at 01:49PM PDT, ID: 20096938

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12.28.2007 at 10:19PM PST, ID: 20546980

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10.17.2007 at 10:52AM PDT, ID: 20095506

Rank: Genius

SBennett,

The fireEvent method is only for IE.  There are alternatives.  I don't have one that I wrote myself but take a look at these.

http://www.howtocreate.co.uk/tutorials/javascript/domevents

OR

http://blogs.vertigo.com/personal/aanttila/Blog/Lists/Posts/Post.aspx?ID=6

Let me know how those will work.  I'll be happy to help more if you need or have a question.  They both look good (scroll down a bit on each page to find the "manually fire event" or "firing events" section).  Let me know if you have any questions or need more information.

b0lsc0tt
Accepted Solution
 
10.17.2007 at 11:40AM PDT, ID: 20095870
This sample from the second link looks kind of like what I need:
function fireClickEvent(control)
{
    if (document.all)
    {
        control.fireEvent("onclick");
    }
    else
    {
        var clickEvent = window.document.createEvent("MouseEvent");
        clickEvent.initEvent("click", false, true);
        control.dispatchEvent(clickEvent);
    }
}

but I don't know how to convert it for use with onChange which is not a "MouseEvent"

I have done this:
<script language="javascript" type="text/javascript" for="window" event="onload">
    if (document.all) { initialize(); }
    else { window.document.addEventListener("DOMContentLoaded", initialize, true); }
</script>
<script language="JavaScript">
function fireChangeEvent(control)
{
    if (document.all)
    {
        control.fireEvent("onchange");
    }
    else
    {
        var changeEvent = window.document.createEvent("HTMLEvent");
        changeEvent.initEvent("change", false, true);
        control.dispatchEvent(changeEvent);
    }
}
</script>
but it throws errors, any thoughts?
 
10.17.2007 at 11:57AM PDT, ID: 20096001

Rank: Genius

My first thought is to use change instead of HTMLEvent.  For example ...

    else
    {
        var changeEvent = window.document.createEvent("change");
        changeEvent.initEvent("change", false, true);
        control.dispatchEvent(changeEvent);
    }

Let me know how that works.  This might be something that browser security will prevent (IE has never been the most careful regarding that :-] ).  Scripting an onchange event "firing" would be something a browser might be cautious of and prevent.  If that is the case then this won't work.  I am not saying we can't because I haven't read anything (yet) that said it but just a caution.

bol
 
10.17.2007 at 12:59PM PDT, ID: 20096514
That doesn't work either it is the first line of:
<script language="javascript" type="text/javascript" for="window" event="onload">
    if (document.all) { initialize(); }
    else { window.document.addEventListener("DOMContentLoaded", initialize, true); }
</script>
that is causing the error
 
10.17.2007 at 01:10PM PDT, ID: 20096614

Rank: Genius

What are you trying to do with that script tag?  The for and event "attributes" aren't part of the W3 specs to my knowledge.

Also, what is the event listener you are trying to add?

bol
 
10.17.2007 at 01:14PM PDT, ID: 20096650
I have no Idea I just copied it from that page on the second link you posted:
http://blogs.vertigo.com/personal/aanttila/Blog/Lists/Posts/Post.aspx?ID=6

should I take that part out?
 
10.17.2007 at 01:47PM PDT, ID: 20096923

Rank: Genius

Yes remove that for what we are working on here.  That script is suggested for something else.  To be honest I am not sure what or how useful it would be.  It should not be required for what we are trying.

bol
 
10.17.2007 at 01:49PM PDT, ID: 20096938

Rank: Genius

One thing I can tell you for sure is that script seems to be used when you want to run an "initialize" function when the page loads.  We aren't worried about the page load and you probably don't even have a function with that name.

bol
 
12.28.2007 at 10:19PM PST, ID: 20546980

Rank: Genius

No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I will leave the following recommendation for this question in the Cleanup topic area:
   Accept: b0lsc0tt {http:#20095506}

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

b0lsc0tt
EE Cleanup Volunteer
 
 
12.29.2007 at 11:32AM PST, ID: 20548683
Thanks for coming back to close this.  I'm glad that I could help.  Thanks for the grade, the points and the fun question.

bol
 
 
 
20080236-EE-VQP-29 / EE_QW_EXPERT_20070906