The new features of C# 4.0 focuses on being a good citizen in a big world. In this talk we look at named and optional arguments, as well as the much improved COM interaction. We pay special attention to the new dynamic feature and the Dynamic Language Runtime (DLR) that it builds on: How do they work, how can you use them and why did we design them this way. We interoperate with COM and the HTML DOM, and build our own dynamic objects.
For more information, check out this course on Microsoft Virtual Academy: