Found it ;) http://bugs.adobe.com/jira/browse/FLEXDMV-1334
I think the code below should work (untested and rough but you get the idea) package com.inpses.util { import flash.events.Event; import mx.collections.HierarchicalData; import mx.events.CollectionEvent; import mx.events.CollectionEventKind; public class EventHierarchicalDataSource extends HierarchicalData { public function EventHierarchicalDataSource(value:Object=null) { super(value); } public override function set source( value : Object ) : void { super.source = value; dispatchEvent( new CollectionEvent( CollectionEvent.COLLECTION_CHANGE, false, false, CollectionEventKind.REFRESH ) ); if ( value ) { value.addEventListener( CollectionEvent.COLLECTION_CHANGE, dispatchSourceChangeEvent, false, 0, true); } } private function dispatchSourceChangeEvent ( event : Event ) : void { dispatchEvent( new CollectionEvent( CollectionEvent.COLLECTION_CHANGE, false, false, CollectionEventKind.REFRESH ) ); } } } Gregor Kiddie Senior Developer INPS Tel: 01382 564343 Registered address: The Bread Factory, 1a Broughton Street, London SW8 3QJ Registered Number: 1788577 Registered in the UK Visit our Internet Web site at www.inps.co.uk <blocked::http://www.inps.co.uk/> The information in this internet email is confidential and is intended solely for the addressee. Access, copying or re-use of information in it by anyone else is not authorised. Any views or opinions presented are solely those of the author and do not necessarily represent those of INPS or any of its affiliates. If you are not the intended recipient please contact [EMAIL PROTECTED] ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Gregor Kiddie Sent: 06 May 2008 15:58 To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] questionfor AdvancedDataGrid? "I have the following question about AdvancedDataGrid?" Yeah, there is a closed bug about it (can't find the number just now!) The Grouping and Hierarchical dataproviders don't throw events when their contents change, so the binding never fires with what you have there. The workaround is to subclass the GroupingCollection and manually throw the event when it changes. I'll try and find the bug number... Gk. Gregor Kiddie Senior Developer INPS Tel: 01382 564343 Registered address: The Bread Factory, 1a Broughton Street, London SW8 3QJ Registered Number: 1788577 Registered in the UK Visit our Internet Web site at www.inps.co.uk <blocked::http://www.inps.co.uk/> The information in this internet email is confidential and is intended solely for the addressee. Access, copying or re-use of information in it by anyone else is not authorised. Any views or opinions presented are solely those of the author and do not necessarily represent those of INPS or any of its affiliates. If you are not the intended recipient please contact [EMAIL PROTECTED] ________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of markflex2007 Sent: 06 May 2008 14:55 To: flexcoders@yahoogroups.com Subject: [flexcoders] questionfor AdvancedDataGrid? Hi, I have the following question about AdvancedDataGrid?