Changing selectedIndex and onchange events

[Tom Cole]

Whilst I have no immediate need for it, I've noticed that if a select
element is changed via setting the selectedIndex value, it does not
fire an onchange event. Is there any reason for this? Both IE 6 and FF
2 behave the same in regards to this.

Is it the developers responsibility to fire this event in such a
situation?

[VK]

Re: Changing selectedIndex and onchange events

On Mar 20, 7:55 pm, "Tom Cole" <tco...@gmail.c omwrote:

Whilst I have no immediate need for it, I've noticed that if a select
element is changed via setting the selectedIndex value, it does not
fire an onchange event. Is there any reason for this?

At least for IE there is:

http://msdn.microsoft.com/workshop/author/dhtml/reference/events/onchange.asp

"The onchange event does not fire when the selected option of the
select object is changed programatically ."

I don't remember if it is some standard DOM interface feature or a
"default common behavior" of all browsers. From the practical point of
view it is not so relevant though.

Both IE 6 and FF 2 behave the same in regards to this.

Yes, see above.

Is it the developers responsibility to fire this event in such a
situation?

I'm afraid so. And remember that custom events do not propagate
(bubble) so you have to fire them for each event consumer separately.

[RobG]

Re: Changing selectedIndex and onchange events

On Mar 21, 2:55 am, "Tom Cole" <tco...@gmail.c omwrote:

Whilst I have no immediate need for it, I've noticed that if a select
element is changed via setting the selectedIndex value, it does not
fire an onchange event. Is there any reason for this? Both IE 6 and FF
2 behave the same in regards to this.
>
Is it the developers responsibility to fire this event in such a
situation?

The W3C event model provides dispatchEvent, IE provides fireEvent.
The archives are a remarkable resource - Michael Winter provides a
very comprehensive answer here:

subject: How to trigger event programmaticall y?
<URL:
http://groups.google.com.au/group/co...cea9cdf065a524

>

--
Rob