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You make a good point about obsolete documentation on this site. I have a new site design in the works that gives up-to-date guidance. Until I get that published, please consider the articles under "The Basics" to be the recommended ways of using Update Controls.

As for this article, Linq to SQL is no longer preferred, so this T4 template is obsolete. I recommend using EF as a repository and mementos. Design you own Independent-based data model separate from the persistence layer.