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From João Fernandes <joaopedromartinsfernan...@gmail.com>
Subject Re: Spark GridItemRenderer
Date Thu, 03 Jul 2014 13:11:18 GMT
try to set a breakpoint in the labelDisplay setter function so you can
check when the object is created.


On 3 July 2014 12:09, Deepak MS <megharajdeepak@gmail.com> wrote:

> My only requirement was to align the columns towards right and I thought
> setting textAlign property for labelDisplay would work normally. But it
> doesn't seem to, as labelDisplay is always null, I dont know why.
>
> So now, I am adding another label child to my itemrenderer and it does the
> job. But why is labelDisplay null if we extend GridItemRenderer? I could
> have avoided adding another child and performance would have been even
> better I feel.
>
> This is what I am doing right now:
> public class SpreadNormalRenderer extends GridItemRenderer
>     {
>         public var dataField:String;
>         public var textAlign:String = 'left';
>
>         private var normalLabel:StyleableTextField;
>         public function SpreadNormalRenderer()
>         {
>             super();
>         }
>
>         [Bindable("dataChange")]
>
>         override protected function createChildren() : void
>         {
>             super.createChildren();
>             normalLabel = new StyleableTextField();
>             normalLabel.setStyle("color", AppColors.BLACK);
>             normalLabel.setStyle("textAlign", textAlign);
>             addElement(normalLabel);
>         }
>
>         override protected function commitProperties():void
>         {
>             super.commitProperties();
>             if(data)
>             {
>                 normalLabel.text = data[dataField];
>             }
>
>         }
>
>         override protected function updateDisplayList(
> unscaledWidth:Number, unscaledHeight:Number ) : void
>         {
>             super.updateDisplayList(unscaledWidth, unscaledHeight);
>             normalLabel.width = unscaledWidth;
>             normalLabel.height = unscaledHeight;
>         }
>
>         override public function set data(value:Object):void
>         {
>             // TODO Auto Generated method stub
>             super.data = value;
>             invalidateProperties();
>             dispatchEvent(new FlexEvent(FlexEvent.DATA_CHANGE));
>         }
>     }
>
> And thanks for the references... : )
>
>
> On Wed, Jul 2, 2014 at 5:22 PM, MichaPooh <raspar_123@yahoo.fr> wrote:
>
> > Hellothe labelDisplay in GridItemRenderer is only optimal, because you
> > could
> > want to create other stuff like a checkbox, a chart component or
> something
> > else...You have to create an ItemRenderer based on GridItemRenderer where
> > you declare/set the labelDisplay.An easy example as a MXML renderer would
> > be:
> >
> >
> >
> > --
> > View this message in context:
> >
> http://apache-flex-users.2333346.n4.nabble.com/Spark-GridItemRenderer-tp7130p7134.html
> > Sent from the Apache Flex Users mailing list archive at Nabble.com.
> >
>



-- 

João Fernandes

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