C# in Depth, Second Edition

Chapter 13. Minor changes to simplify code

This chapter covers

• Optional parameters
• Named arguments
• Streamlining ref parameters in COM
• Embedding COM primary interop assemblies
• Calling named indexers declared in COM
• Generic variance for interfaces and delegates
• Changes in locking and field-like events

Just as in previous versions, C# 4 has a few minor features that don’t merit individual chapters to themselves. In fact, there’s only one really big feature in C# 4—dynamic typing—which we’ll cover in the next chapter. The changes we’ll cover here just make C# that little bit more pleasant to work with, particularly if you work with COM on a regular basis. These features generally make code clearer, remove drudgery from COM calls, or simplify ...