That probably means that some child object isn't created yet, although Binding usually ignores such errors. Might you be calling initialize() out of order?
There is a "recipe" for creating components that we recommend you follow. It is written up in the documentation, but also recently in Flex Authority Magazine. As far as binding warning are concerned, sometimes they can be ignored, and sometimes not. The warning is there for a reason. It is unusual for an MXML component that subclasses a display component to not be an IEventDispatcher, so there is something odd about that situation as well. Can you give us an idea of what the MXML version looked like? -Alex From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Juan Carlos M. Sent: Thursday, November 06, 2008 8:11 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: unable to bind to property 'width' on class 'Object' I had to rewrite my mxml component as an actionscript component... although there are some "warning: unable to bind to property 'width' on class 'Object' (class is not an IEventDispatcher)" the component is shown on the screen... but there is a new issue... this piece of code that worked in the mxml version: _legendWindow = ThemesControl( PopUpManager.createPopUp(this,ThemesControl, false)); now throws the following error: TypeError: Error #1009: No se puede acceder a una propiedad o a un método de una referencia a un objeto nulo. at _ThemesControlWatcherSetupUtil/setup() at ThemesControl/initialize()[ThemesControl.mxml:0] --- In flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>, "florian.salihovic" <[EMAIL PROTECTED]> wrote: > > Code? > > --- In flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>, "Juan > Carlos M." <colombia@> wrote: > > > > but the problem is that component doesn´t appear on screen... > > ...it seems that it is unable to add it's child components... (measure > > method is called in an infinite loop) > > > > > > > > --- In flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>, > > "Vijay Anand Mareddy" <vam2@> wrote: > > > > > > dont worry its only a warning. > > > You can get ride of it by typecasting your Object into an XML like this: > > > { XML(object).width } > > > > > > --- In flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>, > > > "Juan Carlos M." <colombia@> wrote: > > > > > > > > Hi... may this is weird.... > > > > > > > > I´ve extended a Canvas component using mxml. When I use that component > > > > inside a titlewindow it works... > > > > but it doesn´t work inside other components and flex's console shows > > > > this error: > > > > > > > > warning: unable to bind to property 'width' on class 'Object' (class > > > > is not an IEventDispatcher) > > > > > > > > (it seems that measure method is in an infinite loop... ) > > > > > > > > > >
