Amy is saying you could write your function like this:
private function labelFunctionTest( itm:Object, col:DataGridColumn) :String
{
return df.format(itm[col.dataField]);
}
Which is correct and probably the easiest way to go. If you want to subclass
you would do something like this:
public class AngeloDataGridColumn extends DataGridColumn
{
public function AngeloDataGridColumn()
{
labelFunction = labelFunctionTest;
}
private function labelFunctionTest(item:Object, col:DataGridColumn):String
{
return owner.document.df.format(item[dataField]);
}
}
By subclassing you don’t have to assign the labelFunctions to the columns that
need them.
On 4/16/10 2:12 PM, "Angelo Anolin" <[email protected]> wrote:
Hi Alex,
Appreciate if you could show a little example.
Thanks.
Angelo
________________________________
From: Alex Harui <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Fri, 16 April, 2010 12:29:57
Subject: Re: [flexcoders] Re: Reuse a LabelFunction
If it were me, I would subclass DataGridColumn and add the labelfunction to the
subclass. Then it has the DGC’s context like dataField to work with.
On 4/16/10 7:40 AM, "valdhor" <valdhorlists@ embarqmail. com> wrote:
If it were me, I would use an item renderer.
--- In flexcod...@yahoogro ups.com <mailto:flexcoders% 40yahoogroups. com
<mailto:flexcoders%40yahoogroups.com> > , Angelo Anolin <angelo_anolin@ ...>
wrote:
>
> Hi Amy,
>
> But as you can see in the function, I am specifying the Datafieldname from
> the object which was passed.
>
> How can I make it more generic so that I can re-use it in other datagrid
> columns? I hope you could provide some samples. thanks.
>
> Angelo
>
>
>
>
> ____________ _________ _________ __
> From: Amy <amyblankenship@ ...>
> To: flexcod...@yahoogro ups.com <mailto:flexcoders% 40yahoogroups. com
> <mailto:flexcoders%40yahoogroups.com> >
> Sent: Fri, 19 March, 2010 9:13:38
> Subject: [flexcoders] Re: Reuse a LabelFunction
>
> Â
>
>
> --- In flexcod...@yahoogro ups.com, Angelo Anolin <angelo_anolin@ ...> wrote:
> >
> > Hi FlexCoders,
> >
> > I have created a labelfunction which I use in my datagrid to format the
> > display value.
> >
> > <mx:DateFormatter id="df" formatString= "DD/MM/YYYY" />
> >
> > And this is the AS function
> > private function labelFunctionTest( itm:Object, col:DataGridColumn) :String
> > {
> > Â Â Â return df.format(itm. DataFieldNamefor Col1);
> > }
> >
> > Is there a way so that I could reuse the same label function to other
> > datagrid columns? As you can see from the script above, I am only using
> > the function to Col1 for the datagrid. How would I be able to specify the
> > datafield if I am going to reuse the same with other datagrid columns?
>
> That is what the DataGridColumn parameter is for. Look at its dataField
> property.
>
> HTH;
>
> Amy
>
--
Alex Harui
Flex SDK Team
Adobe System, Inc.
http://blogs.adobe.com/aharui
