I've never used LINQ with datasets. Not sure how it will work for you. But you can start reading here.
http://msdn.microsoft.com/en-us/library/bb386977(v=vs.110).aspx>I don't, you're right. It is the preferred approach though no? I will also need to join and do some aggregation.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer