Cheers, I'll have a fiddle...oooeer... _____
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Sherif Abdou Sent: 22 January 2008 19:57 To: flexcoders@yahoogroups.com Subject: [SPAM] Re: [flexcoders] Re: checkbox- create a bindable "value" property here is an example straight from the Panel, hopfully no rules borken but that is how you do it. [Bindable("layoutChanged")] public function get layout():String { return _layout; } /** * @private */ public function set layout(value:String):void { if (_layout != value) { _layout = value; if (layoutObject) // Set target to null for cleanup. layoutObject.target = null; if (_layout == ContainerLayout.ABSOLUTE) layoutObject = new CanvasLayout(); else { layoutObject = new BoxLayout(); if (_layout == ContainerLayout.VERTICAL) BoxLayout(layoutObject).direction = BoxDirection.VERTICAL; else BoxLayout(layoutObject).direction = BoxDirection.HORIZONTAL; } if (layoutObject) layoutObject.target = this; invalidateSize(); invalidateDisplayList(); dispatchEvent(new Event("layoutChanged")); } } ----- Original Message ---- From: Tim Ashworth <[EMAIL PROTECTED]> To: flexcoders@yahoogroups.com Sent: Tuesday, January 22, 2008 1:48:27 PM Subject: RE: [flexcoders] Re: checkbox- create a bindable "value" property OK, I'm interested in this - how does it work binding to an event? Could someone post some code as an example? t _____ From: [EMAIL PROTECTED] ups.com <http://ups.com/> [mailto:flexcoders@ yahoogroups. com] On Behalf Of rueter007 Sent: 22 January 2008 17:57 To: [EMAIL PROTECTED] ups.com <http://ups.com/> Subject: [flexcoders] Re: checkbox- create a bindable "value" property or as Sherif pointed out, you can check for the selected property change and fire a custom event and mark the bindable tag for the 'value' property with that custom event. --- In [EMAIL PROTECTED] ups.com <mailto:flexcoders%40yahoogroups.com> , "rueter007" <[EMAIL PROTECTED] ..> wrote: > > > > When i try to bind a data model to the "value" property, it doesn't > > > update the model when the value changes. However, when I do: > > > click="Alert. show(value) ", it returns 0 or 1 as expected. So it > > > seems that the internals are changing the value correctly, but the > > > bind isn't working? > > The internals are not changing the value property. They are in fact > changing the 'selected' property and you are calling 'get value' in > your alert, the value of which which is always calculated based on the > current 'selected' property value. The binding event is fired only > when the value property is changed by something else. And in your > case, it is never changed and hence binding never occurs. > > - venkat > http://www.venkatj. <http://www.venkatj.com/> com > > --- In [EMAIL PROTECTED] ups.com <mailto:flexcoders%40yahoogroups.com> , Sherif Abdou <sherif626@> wrote: > > > > Doesnt he need ti dispatch an Event so it works? So dispatch the > event then have it [Binable(event= "eventName" )] > > > > > > ----- Original Message ---- > > From: "tim@" <tim@> > > To: [EMAIL PROTECTED] <mailto:flexcoders%40yahoogroups.com> ups.com > > Sent: Tuesday, January 22, 2008 12:56:05 AM > > Subject: Re: [flexcoders] checkbox- create a bindable "value" property > > > > Hi, > > > > As far as I understand binding the bind works from the data out to the > > bound component. So when the data is changed the componenet picks up the > > change. However I don't believe it works the other way, in fact I'm sure > > it doesn't. This makes sense as you should only change the data when you > > are absolutely sure the data recieved is correct. > > > > So in this case you'll need a function triggered by the change on the > > components to change _value. You will trace the correct value on the > > component currently, but the data will not be changed. > > > > Hope this helps > > > > Tim > > > > > Hello! I want a checkbox to return 1 or 0 instead of true or false > > > respectively. Here's my component: > > > > > > <?xml version="1.0" encoding="utf- 8"?> > > > <mx:CheckBox xmlns:mx="http://www.adobe. <http://www.adobe./> com/2006/ mxml"> > > > <mx:Script> > > > <![CDATA[ > > > private var _value:Number; > > > > > > [Bindable] > > > public function get value():Number{ > > > if(selected= =true) > > > { > > > _value=1; > > > return _value; > > > > > > } > > > else > > > { > > > _value=0; > > > return _value; > > > } > > > > > > } > > > > > > public function set value(val:Number) :void{ > > > if (val==1) > > > { > > > _value=1; > > > selected=true; > > > } > > > else > > > { > > > _value=0; > > > selected=false; > > > } > > > > > > } > > > > > > ]]> > > > </mx:Script> > > > </mx:CheckBox> > > > > > > > > > When i try to bind a data model to the "value" property, it doesn't > > > update the model when the value changes. However, when I do: > > > click="Alert. show(value) ", it returns 0 or 1 as expected. So it > > > seems that the internals are changing the value correctly, but the > > > bind isn't working? Thanks for all your help! -bmiles > > > > > > > > > > > > > > > > > > > ____________ _________ _________ _________ _________ _________ _ > > Looking for last minute shopping deals? > > Find them fast with Yahoo! Search. > http://tools. search.yahoo. com/newsearch/ category. <http://tools.search.yahoo.com/newsearch/category.php?category=shopping> php?category= shopping > > > _____ Never miss a thing. Make Yahoo <http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs> your homepage.
