12. Delegates and Lambda Expressions
PREVIOUS CHAPTERS DISCUSSED extensively how to create classes using many of the built-in C# language facilities for object-oriented development. The objects instantiated from classes encapsulate data and operations on data. As you create more and more classes, you see common patterns in the relationships between these classes.
One such pattern is to pass an object that represents a method that the receiver can invoke. The use of methods as a data type and their support for publish-subscribe patterns is the focus of this chapter. Both C# 2.0 and C# 3.0 introduced additional syntax for programming in this area. ...
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