Thank you, this is working very well now except for one bug:
When I click directly on the checkbox I get the following error:
Property @selected not found on Boolean and there is no default value. Meaning
that 'oItem', instead of coming back as an object
(event.currentTarget.selectedItem) is being set to a Boolean value.
This also happens, albeit inconsistently, on a row click when the row doesn't
appear to have focus.
note: I change oItem.selected to oit...@selected because the DP 'selected' is
an attribute, not a property.
here's the updated code (and thank you again!):
private function onItemClick( event:ListEvent ):void {
var oItem:Object = event.currentTarget.selectedItem;
oit...@selected = (oit...@selected == 'true') ? false :
true;
var coll:XMLListCollection = myDG.dataProvider as
XMLListCollection;
coll.itemUpdated(oItem); //this is required when you
directly set an item property
}
--- In [email protected], "Tracy Spratt" <tspr...@...> wrote:
>
> You are very close. But setItemAt requires an entire item, not just the
> changed property. While setItemAt might be better practice, I would just
> set the property directly, and then call itemUpdated:
>
> private function onItemClick( event:ListEvent ):void {
> var oItem:Object = event.currentTarget.selectedItem;
>
> oItem.selected = true;
>
> var coll:XMLListCollection = myDG.dataProvider as XMLListCollection;
> coll.itemUpdated(oItem); //this is required when you directly set an item
> property
>
> }
>
>
>
> Tracy Spratt,
>
> Lariat Services, development services available
>
> _____
>
> From: [email protected] [mailto:[email protected]] On
> Behalf Of fumeng5
> Sent: Tuesday, April 14, 2009 1:32 PM
> To: [email protected]
> Subject: [flexcoders] Re: Access DataGridColumn on DataGrid Row Click
>
>
>
>
>
>
>
>
> Tracy,
>
> Thank you for your response. I've got the checkbox renderer from cflex and
> it's working just fine. i've updated my XMLListCollection with the
> 'selected' property and it renders fine as well.
>
> The problem is updating the collection on click of a datagrid row.
>
> Here is what I have:
>
> private function onItemClick( event:ListEvent ):void {
> // update the dataprovider using the collection API
> var e:ListEvent = event;
> var rowIndex:Number = e.rowIndex;
> var coll:XMLListCollection = myDG.dataProvider as XMLListCollection;
> coll.setItemAt({selected:true},rowIndex);
> }
>
> I don't appear to be setting the correct object. Do I wanted to be setting
> the datagrid's selectedItem instead?
>
> and here is my XMLListCollection.
>
> <mx:dataProvider>
> <mx:XMLListCollection>
> <mx:source>
> <mx:XMLList xmlns="">
> <data col1="haha" selected="false"/>
> <data col1="hahaha" selected="true"/>
> <data col1="hahahaha" selected="true"/>
> </mx:XMLList>
> </mx:source>
> </mx:XMLListCollection>
> </mx:dataProvider>
>
> Thank you very much for your help.
> --- In flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com,
> "Tracy Spratt" <tspratt@> wrote:
> >
> > You need to study up on item renderers a bit. What you are trying to do
> > will not work. The check box state must be driven by a value in the
> > dataProvider item. You should not attempt to access the check box directly
> > via code.
> >
> >
> >
> > Find an example of a checkbox renderer, there are many, I have one on
> > www.cflex.net <http://www.cflex. <http://www.cflex.net/> net/> . Do not
> attempt to create an
> > interactive itemRenderer from scratch
> >
> >
> >
> > When you have a working renderer, you can simply set the property on the
> > dataProvider item (using the collection API, or itemUpdated())
> >
> >
> >
> > Tracy Spratt,
> >
> > Lariat Services, development services available
> >
> > _____
> >
> > From: flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com
> [mailto:flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com]
> On
> > Behalf Of fumeng5
> > Sent: Tuesday, April 14, 2009 9:56 AM
> > To: flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com
> > Subject: [flexcoders] Access DataGridColumn on DataGrid Row Click
> >
> >
> >
> >
> >
> >
> >
> >
> > Hi,
> >
> > I'm trying to access a DataGridColumn when a user clicks on a DataGrid
> row.
> > The problem is that I'm not trying to access the column that was clicked
> > on....
> >
> > I want to select a checkbox that is always in the 2nd column whether a
> user
> > clicks on the 2nd column or not. I'm having trouble figuring out how to do
> > that......Can anyone point me in the right direction?
> >
> > Thanks!
> >
> > <mx:DataGrid id="myDG" width="100%" height="100%"
> > itemClick="onItemClick(event)">
> >
> > <mx:dataProvider>
> > <mx:XMLListCollection>
> > <mx:source>
> > <mx:XMLList xmlns="">
> > <data col1="haha" col2=""/>
> > <data col1="hahaha" col2=""/>
> > <data col1="hahahaha" col2=""/>
> > </mx:XMLList>
> > </mx:source>
> > </mx:XMLListCollection>
> > </mx:dataProvider>
> >
> > <mx:columns>
> >
> > <mx:DataGridColumn headerText="col1" dataField="@col1"/>
> >
> > <mx:DataGridColumn headerText="col2" dataField="@col2">
> > <mx:itemRenderer>
> > <mx:Component>
> > <mx:CheckBox label="Check this Box!" />
> > </mx:Component>
> > </mx:itemRenderer>
> > </mx:DataGridColumn>
> >
> > </mx:columns>
> >
> > </mx:DataGrid>
> >
>
