http://www.codeproject.com/cs/database/usingllblgen.asp
Using a LLBLGen-generated data-access tier
By Frans Bouma
An article which describes how to use the data-access tier, generated by the free, open source data-access tier generator for .NET: LLBLGen. The sourcecode for LLBLGen v1.2 in C# is included, plus the generated data-access tier used in this article (C# and T-SQL) and the creation script for the data