List classes are rooted in the ListBase class and include DataGrid and ListBase.
The ListBase class is the base class for all of the list classes in Flex which are:
List classes share a common interface through the dataProvider properties and they dispatch similar events.
More to come...
The DataGrid class is a very flexible and commonly used class that displays a set of data in a grid. This data is structured into rows and columns and the data can be edited.
DataGrid is a subclass of DataGridBase which extends ListBase. DataGridBase provides some of the default implementation of the DataGrid, but there are no other subclasses of DataGridBase.
More to come...