Within .Net 3.5 SP1 and higher, if I do the following:
create a database with many FK relationships, drag-and-drop create a LINQ class, create a page with a LINQDataSource & simple ASP.Net GridView, I can then add some simple field tags like:  

and presto!   I have a grid that shows the relational data, not just ID integers.

I have not yet found a way to access this power using either of the Infragistics grids.   The behavior I've experienced so far is that it seems that I am limited to the equivelant of the ASP.Net GridView's BoundField, even when the data source for the Infragistics grid is a LINQDataSource which is pulling from the  DataContect model/class.

Is it true that from the Infragistics grids that I do not have access to this Dynamic Data?   Would code-behind be required to make it available to the Infragistics grids?  Am I mistaken?

Any ideas or suggestions would be appreciated.

-Gary