More specifically, here's what I'm trying to change
the viewState in
my itemRenderer when the DataGrid's textfield is edited. But in
order to do that, I need to somehow get an instance reference to my
renderer component. And nothing I've done seems to work...
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:comp="components.*"
verticalAlign="top" horizontalAlign="center"
layout="absolute">
<mx:Script>
<![CDATA[
import components.imgReset;
import mx.collections.ArrayCollection;
import mx.events.DataGridEvent;
import mx.controls.Alert;
[Bindable]
public var choices:ArrayCollection = choices = new
ArrayCollection([
{resetImage: "images/reset.png", fieldName: "Smalltown"},
{resetImage: "images/reset.png", fieldName:
"Bigtown"},
]);
private function changeRendererState(event:DataGridEvent) : void
{
// I can get the rowIndex and columnIndex for the renderer,
// but I don't exactly how to use them to get to the
renderer object...
Alert.show(event.rowIndex + ", " + (event.columnIndex - 1));
// I just want to get the renderer instance...
// First, there's a problem with my typecasting ??
// Second, there's no such thing as a row property on
// the DataGrid, but I really want there to be...
var RendererInstance:imgReset = imgReset(this.myGrid.columns
[event.columnIndex-1].row[event.rowIndex].itemRenderer);
// Now I want to manipulate renderer instance
properties/states...
RendererInstance.currentState = 'showReset';
}
]]>
</mx:Script>
<mx:DataGrid id="myGrid"
editable="true"
dataProvider="{choices}"
itemEditEnd="changeRendererState(event)" >
<mx:columns>
<mx:DataGridColumn dataField="resetImage"
headerRenderer="components.HeaderReset"
itemRenderer="components.imgReset"/>
<mx:DataGridColumn dataField="fieldName"
editable="true" width="230"
headerText="Field Name" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
I'd sure appreciate some help on this conundrum.
Many Thanks,
Bruce
--- In [EMAIL PROTECTED]ups.com,
"flex8it" <[EMAIL PROTECTED]> wrote:
>
> I have simple datagrid with 2 columns and 2 rows like this:
>
> column 0 column 1
> -------- ---------
> image textfield
> image textfield
>
> Column 0 contains my ImageRenderer component.
> Column 1 contains the DataGrid's default item renderer and editor:
> text, textfield.
>
> First Problem:
> How do I identify/get a reference to a particular instance of my
> ImageRenderer from, say, column[0], row[1]?
>
> Second (related) Problem:
> How do I get the ImageRender instance that corresponds to the row
of
> the textfield that fires an event when edited?
>
> I've been wrestling with this problem for days now, and I just
can't
> seem to get a grasp on the communication/eventing infrastructure
> that's probably necessary to pull this off. Please help.
>
> Thanks,
> Bruce
>
