For info on how you ought to be doing your data access, read the DW2 link in my signature (and keep an eye out for pages that are .net 3.5 enhanced)

Start with the section "Creating a Simple Data App"

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"it's a fax from your dog, Mr Dansworth. It looks like your cat" - Gary Larson...DW1: Data Walkthroughs 1.1...DW2: Data Walkthroughs 2.0...DDS: The DataSet Designer Surface...ANO: ADO.NET2 Orientation...DAN: Deeper ADO.NET...DNU...PQ