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Re: item renderer in ComboBox not consistent

by Mic-17 :: Rate this Message:

Hi Jeff, what this does is set the background color of the renderer's VBox and therefore the line shading to gray if the label text begins with an asterisk .... we want to highlight these paricular rows in the list. I know what you are saying about creationComplete() only running once, but I was thinking the renderer would have to redo itself on a scroll because the viewable area had changed.

--- In flexcoders@..., Jeffry Houser <jeff@...> wrote:

>
>
> It looks like you are trying to change the background color of the
> label so that you have alternating colors, is that correct?
> This won't work due to render recycling. Renderers are re-used. There
> is not a single renderer for every item in your dataProvider.
> CreationComplete complete only runs once.
>
> You might try code like this on the dataChange event. Or using
> updateComplete.
>
> Or google it and discover the alternatingItemColors style:
> http://blog.flexexamples.com/2007/08/17/alternating-row-colors-in-a-flex-list-control/
>
> Mic wrote:
> > I thought this might work --- fine until I start scrolling when it gets totally out of wack. The trace does fire occasionally while scrolling but not consistently. Appreciate some hints. TIA,
> >
> > Mic.
> >
> > <?xml version="1.0" encoding="utf-8"?>
> > <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" horizontalScrollPolicy="off">
> > <mx:Script>
> > <![CDATA[
> > private function labelComplete():void{
> > trace("Here");
> > if(label1.text.substr(0,1) == "*"){
> > this.setStyle("backgroundColor", 0xe8e8e3);
> > }else{
> > this.setStyle("backgroundColor", 0xFFFFFF);
> > }
> > }
> > ]]>
> > </mx:Script>
> > <mx:Label id="label1" text="{data.cmplx_nm}" creationComplete="labelComplete()" />
> > </mx:VBox>
> >
> >
> >
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