This mxml-code layouts some flex components... DataGrid is a table like DataContainer which is organized in rows and columns.
The DataGridColumn defines the Data presented in one of this columns. The error you get usally means that you are missing the
import statement for the datagrid-component(import mx.controls.DataGrid;). My advise is that maybe get a book about the new Flex 4 Framework(because a lot has changed and most tutorials, in my opinion, are outdated now) and invest some time to get you head
around the very basics of flex before starting with this web tutorials.
All the best.
errhhh? Hi dude, I don't quite understand.
It's a freaking bible. And i don't know where to begin
I believe this should be
Adobe Flex SDK Team