http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.html
- Original Message -
From: securenetfreedom [EMAIL PROTECTED]
To: flexcoders@yahoogroups.com
Sent: Sunday, May 11, 2008 8:44 AM
Subject: [flexcoders] itemRenderer not updating
I have custom item render in a datagrid that is exhibiting
unpredictable behavior. It does not update when scrolling the
datagrid. Other times it does update, and other times it updates but
on the wrong row.
Here's the component:
?xml version=1.0 encoding=utf-8?
mx:HBox xmlns:mx=http://www.adobe.com/2006/mxml;
horizontalScrollPolicy=off verticalScrollPolicy=off
creationComplete=setItems();
mx:Script
![CDATA[
[Bindable]
private var pct:Number;
[Bindable]
private var pct_str:String;
[Embed(source=assets/flag_red.png)]
[Bindable]
public var red:Class;
[Embed(source=assets/flag_green.png)]
[Bindable]
public var green:Class;
private function setItems():void{
// checking for data=null is neccessary since grid is created
// before dataprovider is populated via webservice
if(data != null){
trace('data.Pct:'+ data.Pct);
pct = Number(data.Pct);
if(pct =85) img.source = green;
if(pct 85) img.source = red;
pct_str = renderPercentText(String(data.Pct));
this.updateDisplayList(this.unscaledWidth,
this.unscaledHeight);
}
}
private function renderPercentText(t:String):String {
return String(percentFormatShort.format(t))+%;
}
// :: for testing only ::
// this click handler will render the cell correctly the
image is clicked
private function setImg(e:Event):void{
setItems();
}
]]
/mx:Script
mx:NumberFormatter id=percentFormatShort precision=0 /
mx:Image id=img width=16 height=16 right=0
click=setImg(event) /
mx:Text id=txt text={pct_str} textAlign=right
width=44 /
/mx:HBox
Thanks for your help.
-Jeff
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