My grid uses a HierarchicalData dataProvider, which points to a subclass of ArrayCollection. The dataProvider is declared Bindable. The data is an ArrayCollection of arrays.
I create a single top-level node, and then create 5000 child nodes. If the top-level node is collapsed, it takes about 4 seconds to create the children, and 1 second to expand the node. If the top-level node is expanded, it takes minutes to add the nodes. If I use DataGrid instead of AdvancedDataGrid, it takes 4 seconds to add 5000 rows. Anyone know why this might be?
