Well i found out myself thanks to Peter Ent see http://weblogs.macromedia.com/pent/archives/2008/03/itemrenderers_p_2.html
--- In flexcoders@yahoogroups.com, "robin bakkerus" <[EMAIL PROTECTED]> wrote: > > Hi there, > > if you have a (generic) item renderer like this: > > <mx:DataGridColumn dataField="aField" headerText="Header" > editorDataField="data" editable="true" > itemRenderer="myRenderer.GridField" /> > > And you use the same renderer on multiple fields, > how then can you find out (in the GridField itemrenderer) what column > is active ? > > thank you in advance >