I am trying to think of a way to make the binding fire after the maxChars is set on the first component. Calling an invalidate method will make the component re-render. Just thinking aloud here.
Maybe you can debug this by stepping through the initializing of the components? There will be other ways to do what you want, depending on the details of what that is. For instance, pass a reference to the controlling component into the custom component, and then read and set maxChars in creationComplete. Tracy ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of danielvlopes Sent: Friday, February 15, 2008 12:53 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Adobe SDK, why flex comps accept bind in properties and custom comps dont? Sorry Tracy, i don't know what talking about with "Perhaps an invalidate of some kind?".... can you explain more? Thanks. --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "Tracy Spratt" <[EMAIL PROTECTED]> wrote: > > The OP is using a public setter function to implement his public > property, instead of a public variable, which is fine, even prefereable. > > > > And the trace shows that his setter is being called, but with the > incorrect value. > > > > I suspect a timing issue, but can't think of a solution. Perhaps an > invalidate of some kind? > > > > Tracy > > > > ________________________________ > > From: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> [mailto:flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of valdhor > Sent: Thursday, February 14, 2008 11:12 AM > To: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Re: Adobe SDK, why flex comps accept bind in > properties and custom comps dont? > > > > AFAIK (I am a newb to flex) to be able to set a property in a custom > component, that property must be public. When Flex compiles the > application, mxml components are compiled into actionscript classes so > to modify the property it must be available to outside classes. Making > it private denies other objects from doing so. > > Also, you are running your init method on initialize. I think you > meant for it to run on creationcomplete (This is why you are getting > NaN). > > I have modified your code to reflect the above: > > Application: > <?xml version="1.0" encoding="utf-8"?> > <mx:Application xmlns:com="*" > xmlns:mx="http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> > <http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> > " layout="absolute"> > <mx:TextInput text="100" id="tiTitulo" width="200" maxChars="100" > change="descCounter.countChars(tiTitulo.length)"/> > <com:CharCounter y="30" id="descCounter" > _maxChars="{tiTitulo.maxChars}" /> > </mx:Application> > > Custom Component: > <?xml version="1.0" encoding="utf-8"?> > <mx:Label xmlns:mx="http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> > <http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> > " > creationComplete="init()" > > > <mx:Script> > <![CDATA[ > > [Bindable] private var _charNumber:Number; > [Bindable] public var _maxChars:Number; > > private function init():void > { > _charNumber = _maxChars; > this.text = this._charNumber.toString(); > } > > public function set maxChars(value:Number):void > { > _maxChars = value; > trace("MAXCHARS" + _maxChars); > } > > public function get maxChars():Number > { > return _maxChars; > } > > public function countChars(value:Number):void > { > var maxChars:Number = _maxChars; > _charNumber = maxChars - value; > this.text = _charNumber.toString(); > } > ]]> > </mx:Script> > </mx:Label> >
