You are doing a few things wrong here. use the following source in your itemrenderer.mxml file
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; xmlns:local="*" > <mx:Script> <![CDATA[ import mx.events.ListEvent; [Bindable] private var dp:Array = [ { symbol: "ADBE", name: "Adobe Systems Inc.", price: 49.95, bold: true }, { symbol: "MACR", name: "Macromedia Inc.", price: 39.95, bold: false }, { symbol: "MSFT", name: "Microsoft Corp.", price: 25.95, bold: true }, { symbol: "IBM", name: "IBM Corp.", price: 42.55, bold: false } ]; private function changeHandler(event:ListEvent):void { var item: Object = event.itemRenderer.data; item.bold = !item.bold; dg1.dataProvider.itemUpdated(item); } // Sets the styles to display the DataGrid Items private function computeStyles(data:Object, column:DataGridColumn):Object { var o:Object = new Object(); var bold:String = data["bold"]; if (bold == "true") { o.bold = true; } else { o.bold = false; } return o; } ]]> </mx:Script> <mx:DataGrid id="dg1" dataProvider="{dp}" change="changeHandler(event)" paddingTop="0" paddingBottom="0" verticalAlign="middle" > <mx:columns> <mx:DataGridColumn headerText="Name" dataField="name" width="140"/> <mx:DataGridColumn headerText="Symbol" dataField="symbol" width="60" /> <local:CustomColumn stylesFunction="computeStyles" headerText="Price" dataField="price" itemRenderer="CustomRenderer" /> </mx:columns> </mx:DataGrid> </mx:Application> The most important issue here is that the changeHandler is modifying the dp array which is not the same as the dataprovider of the grid. you need to get a handle to the actual item in the grid's dataprovider using the event.itemrenderer.data property and make changes to it. I HTH - venkat http://www.venkatj.com --- In [email protected], "m.frigge" <[EMAIL PROTECTED]> wrote: > > Hey Mark, > > I'm struggling with itemRenderers too. First of all here > <http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.h\ > tml> is a link to Alex's blog speaking about itemRenderers and showing > some nice examples. In the BlinkWhenDataChanged example he is changing > Background settings. I tried to adopt his itemRenderer and change it so > that it checks a data value and sets the textFormat depending on what > value the data has. This > <http://16-bits.com/ItemRenderer/ItemRenderer.html> is how far i came. > I toggle the value on change, so when you click it the style changes. My > only Problem is that it doesn't work anymore after sorting the dataGrid > by one of its columns. Maybe we can work on this together :-). > > Cheers, Max > > --- In [email protected], "oneproofdk" <mark@> wrote: > > > > Hi. > > In a itemrenderer I'd like to access a {data} value in a Script in the > > itemrenderer. I just can't figure out how to do this. > > > > I have an ArrayCollection as the dataprovider for the DataGrid. > > In a Column, I sue a itemrenderer "status" > > > > Inside renderer.status.as I have a VBox, with a init() function. > > Inside init I'd like to test if "data.repeating" != null and if so, > > set a label to a specific value, if not null, set to another value. > > > > <vbox><script></script><label/></vbox> > > > > Please - can anyone help me out with an example on how to accomplish > > this, I hope, simple task. > > > > (The reason for using a VBox was that I had my hopes for setting the > > background color also, so if != null color=XX + text = XX etc. > > > > Thanks for your time > > Mark > > >
