Hi.. I was asking about how to do it through ActionScript...

I have done it and know it works in mxml. I'm talking about adding a
property binding using just actionscript, and some incantation of a 

mx.binding.utils.ChangeWatcher or mx.binding.utils.BindingUtils

Thunder

--- In flexcoders@yahoogroups.com, "gsamsa" <[EMAIL PROTECTED]> wrote:
>
> 
> This should work pretty much just the way your example works, so maybe
> one of your parameters isn't bindable?
> 
> The following example works, and also illustrates another less elegant
> way of accomplishing the same thing
> 
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
> layout="absolute">
>      <mx:Button label="{formatLabel(prodName1.text,prodPart1.text)}"
> x="10" y="40"/>
>      <mx:TextInput id="prodName1"  y="10" x="10"/>
>      <mx:TextInput id="prodPart1"  x="193" y="10"/>
> 
>      <mx:Button label="{formatLabel2}" x="10" y="128"/>
>      <mx:TextInput id="prodName2" change="dispatchEvent(new
> Event('labelChanged'))" x="10" y="98"/>
>      <mx:TextInput id="prodPart2" change="dispatchEvent(new
> Event('labelChanged'))"  x="193" y="98"/>
> 
>      <mx:Script>
>      <![CDATA[
>          private function formatLabel(x:String, y:String) : String
>          {
>              return (x + ":" + y);
>          }
> 
>          [Bindable("labelChanged")]
>          private function get formatLabel2() : String
>          {
>              return (prodName2.text + ":" + prodPart2.text);
>          }
>      ]]>
>      </mx:Script>
> 
> </mx:Application>
> 
> --- In flexcoders@yahoogroups.com, "thunderstumpgesatwork"
> <thunder.stumpges@> wrote:
> >
> >
> > Hi guys,
> >
> > I know in mxml you can do data binding like this:
> >
> > <mx:Button label="{formatLabel(someBindableTextField)}" />
> >
> > where any time the bindable property "someBindableTextField" changes,
> > the binding fires, and the label is replaced with the result of the
> > function.
> >
> > This is even more powerful if the function parameters has two bindable
> > properties. When either one changes, the function executes, and the
> > label is updated.
> >
> > How can this be achieved in ActionScript?
> >
> > I have used the ChangeWatcher, and the BindingUtils classes but don't
> > see a simple solution.
> >
> > thanks for any ideas =)
> > Thunder
> >
>







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