The examples I showed in my C# 3.0 presentation were based on the examples provided in the Visual Studio 2008 Training Kit. The source code for the new features in C# 3.0 are located, by default, in C:\VS2008TrainingKit\Labs\WhatsNewC#. There are other great labs in this kit as well.

• Building Web Apps
• Building WPF Apps
• CardSpace
• Client Application Services
• Dynamic Sites
• Intro to ASP.NET Ajax
• JSON
• LINQ to SQL
• Silverlight Monster Factory
• LINQ in VB9
• VSTO (Excel, Outlook, SharePoint, Word)
• Windows Communication Foundation
• Windows Workflow Foundation
• What's New in VB9
• Workflow Services
• WPF Data Binding

That's an exhausting list of material to learn!

Of course, code alone doesn't give you a lot of information. Here are the topics I touched upon with links to MSDN.

C# 2.0

·         Partial Types

·         Aliases

·         Static Classes

·         Property Access Modifiers

·         Generics

·         Nullable Types

·         Null coalescing operator

·         yield

·         Delegates

o   Inference

o   Covariance/Contravariance

o   Anonymous methods

C# 3.0

·         Auto-Implemented Properties

·         Object and Collection Initializers

·         Implicitly typed variables

·         Anonymous types

·         Extension Methods

·         Lambda Expressions

·         Expression Trees

·         LINQ