How to detect resize event of a TextField

I have a TextField with autoSize = true.
So, when the TextField gets resized (because of the size of the text), I want to react to this event (the resize).
Something like:
TextField.onResize.

Is there a way to do it?

No, there's no such event, however, there is an event for when the content of your textfield has been change, which would be the same as when the size changes, because when you add or remove text from your textfield, it will auto-resize again. It's called

TextField.onChanged

Thanks Nig, but it's not what I want.

I think you do want that, because your Text Field's size will only be changed when someone types something into, then it will expand, correct? Then it would be the same if you used onChanged event, because it is fired when the text of your Text Field is changed, and also when you're text is changed, the size of your Text Field has been changed, if you know what I mean.

DOWNLOAD SAMPLE FILE

but I know what you mean as well, but sadly there is no built-in Event onResize event for Text Fields in AS2, BUT, there is however a way around this to make your own Event. This code is far more difficult, but since you really want an onResize event, this is the only way (in the example, I am supposing the textfield's instance name is, txt):

Actionscript Code:

TextObject = new Object();
AsBroadcaster.initialize(TextObject);

txt.autoSize = true;

txtSize = txt._width;

onEnterFrame = function(){
    if(txt._width != txtSize){
        txtSize = txt._width;
        TextObject.broadcastMessage("onResize");
    }
}

resizeListener = new Object();
resizeListener.onResize = function(){
    trace("TextField has been resized!");
}
TextObject.addListener(resizeListener);

Despite its complexity, the code is also bad and uses up memory because of the unnecessary onEnterFrame loop, which could've been replaced with onChanged event, but then we could just use the code provided in my previous post instead :p

Nig thanks a lot, I might try it.