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To complete the lessons in this chapter, you should be familiar with developing applications with Microsoft Visual Studio 2010 by using Microsoft Visual Basic or Microsoft Visual C#.
In addition, you should be comfortable with all of the following: REAL WORLD: Mike Snell Not all applications require developers to write custom, abstracted data layers and reusable frameworks.
This doesn't mean that it makes persistent connections to the database, but means that the Data Context instance maintains state about active result sets, which is especially important if change tracking is on which is the default.The last lesson presents the new Dynamic Data features of ASP.NET that allow you to easily create websites for working with the create, read, update, and delete (CRUD) operations of an entire data model that exists as either a Data Context (such as LINQ to SQL) or an Object Context (such as LINQ to Entities).What this means is that if you plan on using LINQ to SQL like a traditional ORM - forget it. You need to deal with the Data Context and a connected approach. Create a new Context for each atomic operation Basically with this approach you'd create a new Data Context for each atomic operation which would include potentially multiple queries and updates against a database.This would also have to include transactional operations such as running Transactions across multiple operations.