There are checkbox in DataGrid examples on my old blog (blogs.adobe.com/aharui). You might want to start with one of those.
Looks like you are calling applyToAllPoints_changeHandler before the DG has a chance to update selectedItem. -Alex On 4/29/15, 8:23 AM, "mark goldin" <[email protected]> wrote: >Here is my datagrid definition: ><?xml version="1.0" encoding="utf-8"?> ><mx:DataGrid xmlns:fx="http://ns.adobe.com/mxml/2009"; > xmlns:mx="library://ns.adobe.com/flex/mx"> ><fx:Script> ><![CDATA[ >override public function set dataProvider(value:Object):void >{ >if (value) >{ >super.dataProvider = value; >} >} >public function applyToAllPoints_changeHandler(event:Event):void >{ >selectedItem.Selected = event.target.selected; >} >]]> ></fx:Script> ><mx:columns> ><mx:DataGridColumn dataField="Name" headerText="Point" width="260"> ><mx:itemRenderer> ><fx:Component> ><mx:HBox width="100%" verticalAlign="middle" backgroundAlpha="0" >paddingLeft="5"> ><mx:CheckBox selected="{data.Selected}" >click="outerDocument.applyToAllPoints_changeHandler(event)"/> ><mx:Label >text="{data.Name}" >paddingTop="0" >paddingBottom="0" >/> ></mx:HBox> ></fx:Component> ></mx:itemRenderer> ></mx:DataGridColumn> ></mx:columns> ></mx:DataGrid> > >I am using applyToAllPoints_changeHandler function to update dataProvider >with checkbox selection. This has no problem, but selectedItem.Selected is >null because clicking on a checkbox does not select a row? >I also tried <mx:CheckBox selected="{data.Selected}" >click="data.Selected=selected"/> >but it says "Access of undefined property selected". > >How do I update underlying data selecting a checkbox in the grid? > >Thanks
