ASP.NET MVC Framework Unleashed

Appendix A. C# and VB.NET Language Features

In This Appendix

• Type Inference

• Object Initializers

• Anonymous Types

• Nullable Types

• Extension Methods

• Generics

• Lambda Expressions

• LINQ

ASP.NET MVC takes advantage of many advanced features of the C# and VB.NET languages. Some of these features were not introduced into these languages until C# 3.0 and Visual Basic 9.0. This appendix provides you with a brief overview of these new language features.

Type Inference

Both C# and Visual Basic can infer the type of a variable when you create a local variable. For example, the following line of code creates a new string variable named message with the value "Hello World!":

(C#)

var message = "Hello World!";

(VB)

Dim message = "Hello World!" ...