Not sure why you need LINQ there. Try this.
http://msdn.microsoft.com/en-us/library/yth8t382(v=vs.110).aspx>>What type is customers?
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>It's a DataTable. Extracted from Odbc via Ado.Net. Not sure either whether this is the smartest type to keep my table information in, but it's the only one I'm familiar with, well ...
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>Thanks for caring.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer