Hi, There is a greate example in the following link that allows us to create simple hirarchical grid with AdvancedDataGrid, implementing IHierarchicalData.
http://inovativeflexdevolopment.blogspot.com/2008/07/flex3-dynamic-population-of-data-in.html I couldnt find a way to include ItemRenderer using this kind of dataProvider, I tried everything but all I get when using a simple ItemRenderer is a flat tree with no hirarchy :( Please please advice Thanks Jo