Bruno bg + ADOBE FLEX

http://blog.dclick.com.br/2008/02/24/problemas-com-item-renderers-ou-item-editors/pt/

Tem também esses 8 artigos do Peter Ent:
http://www.adobe.com/devnet/flex/articles/itemeditors_pt1.html

http://www.adobe.com/devnet/flex/articles/itemrenderers_pt1.html

http://www.adobe.com/devnet/flex/articles/itemrenderers_pt2.html

http://www.adobe.com/devnet/flex/quickstart/creating_item_editors/
http://www.adobe.com/devnet/flex/quickstart/using_item_renderers/
docs da Adobe sobre itemEditor -  http://livedocs.adobe.com/flex/3/html/celleditor_1.html
docs da Adobe sobre itemRenderer – http://livedocs.adobe.com/flex/3/html/index.html?content=cellrenderer_1.html
procurar por checkBox, comboBox usado no cabeçalho – http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.html
numericStepper - http://livedocs.adobe.com/flex/3/html/help.html?content=celleditor_4.html#201363
checkbox itemEditor – http://blog.flexmonkeypatches.com/2007/11/06/datagrid-checkbox-itemeditor/