Huh, great theory, that is definitely something to look at. Tracy
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Tim Hoff Sent: Wednesday, August 27, 2008 9:17 PM To: [email protected] Subject: [flexcoders] Re: DataGrid change handler: event.selectedItem == true???? w/ CheckBox renderer Hey Tracy, I wonder if his has anything to do with it. override public function get data():Object { return this.selected; } -TH --- In [email protected], "Tracy Spratt" <[EMAIL PROTECTED]> wrote: > > I have a moderately complex standard DataGrid, using an > XMLListCollection dataProvider. In the DG change event handler, I > assign a reference to the selectedItem(an XML node) to an instance > variable. One column of the DG is a CheckBox ItemRenderer. > > On the first interaction with the DG, if I directly click the checkbox, > without first selecting that row, the event.target.selectedItem is the > Booean value, "true", and not the XML node I expect. If I select the > row first, then click the CheckBox renderer, the > event.target.selectedItem is the xml node I want. > > event.target.selectedIndex is reported correctly, so I have a > work-around, but does anyone have any suggestions about why this might > be happening? I have never seen anything like this before, and have > done similar stuff a lot. > > Obviously, I suspect the CheckBox item renderer is playing a role, and > will investigate further, but, any thoughts? The mxml item renderer is > pretty short so I'll post it below. > > Tracy > > > <?xml version="1.0" encoding="utf-8"?> > <!-- RendererCheckBox > special version, uses Status code (W,A) to set/save value --> > <mx:CheckBox xmlns:mx="http://www.adobe.com/2006/mxml"; > click="onClick()"> > > <mx:Script><![CDATA[ > import mx.controls.dataGridClasses.DataGridListData > > public var _xmlItem:XML; //holds the current item xml node > private var _dgListData:DataGridListData; > private var _sDataField:String > > public var value:String = "W"; > > //Sets the state of the checkbox to the value of the selected > attribute > //If there is no selected attribute, create on and set it to false > override public function set data(oItem:Object):void > { > _xmlItem = XML(oItem); > _dgListData = DataGridListData(listData); > _sDataField = _dgListData.dataField; > var sStatusCode:String = _xmlItem[_sDataField]; > var bSelected:Boolean = (sStatusCode == "A"); > this.selected = bSelected; //set the checkbox > state to the local var > }//set data > > /** > * center the contentHolder > */ > override protected function updateDisplayList(w:Number, h:Number):void > { > super.updateDisplayList(w, h); > > var n:int = numChildren; > for (var i:int = 0; i < n; i++) > { > var c:DisplayObject = getChildAt(i); > if (!(c is TextField)) > { > c.x = (w - c.width) / 2; > c.y = 0; > } > } > } > > override public function get data():Object > { > return this.selected; > }// > > //called by click of the checkbox > private function onClick():void > { > if (this.selected) { > _xmlItem[_sDataField] = "A"; > } > else { > _xmlItem[_sDataField] = "W"; > } > dispatchEvent(new Event("IRCbxApprovedClick", true)); > } > > ]]></mx:Script> > > </mx:CheckBox> >
