I'm not sure if my code has a bug or if I don't understand how the DataGrid is supposed to work.
I have a DataGrid with a dataProvider that extends ArrayCollection. The only overridden behavior is that if dataProvider is supposed to return null, it throws an ItemPendingError instead. Here's psuedo-code for what's going on: dataGrid.dataProvider = new ArrayCollectionExt(); // works, dataGrid is blank dataGrid.dataProvider.source = new Array(newLength); // works, DataGrid gains scrollbar and has no values dataGrid.dataProvider.setItemAt(objectSource, 0); // dataGrid is not updated. Am I doing something fundamentally wrong or do I need to track down a bug in my code? Thanks, - Dan Freiman

