An advanced datagrid has a dataField property also.
But if you like working with only one column, just use the List component. It doesn't have a dataField property but it has a labelField property.
Thanks, I have one more confuse what the different between DataGroup and the data-visual components. I notice that the DataGroup alse has the itemrenderer property. Is it the new data-visual component in flex4 instead of any data-visual components in flex3 ?