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Thanks Flex harUI!

I've been reading for a while and testing a bit more about this "problem". Is data binding something a programmer should avoid until is strictly necessary (never) and should every property change be handled by event handlers?

Maybe customizing the event for the [Bindable] metatag a best way to avoid?

As I say, I'm a newbie in flex, but I can see it really isn't very efficient... to say, this simple "program":

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical"
     width="200" height="200"
     xmlns:utils="utils.*">
     <mx:Number id="num">0</mx:Number>     
     <utils:BindableClass id="bc" />
     <mx:Label id="textTest" text="{bc.counter}"/>
     <mx:Button id="myButton" click="bc.counter = num++" label="¡Sum!"/>
</mx:Application>

using this class:

package utils
{
     public class BindableClass
     {
          private var _counter:Number;
          public function BindableClass()
          {
 
               _counter = 100;
          }
 
          [Bindable]
          public function get counter():Number
          {
               return _counter;
          }
 
          public function set counter(value:Number):void
 
          {
               _counter = value;
          }
     }
}
 

I just don't understand why the getter executes 4 times each time I click in button myButton.

Do you think is normal?

Thanks again!

Thanks for the help, harUI. I'll use binding in those cases.

Regards