Chapter 17. Delegates

In This Chapter

• Functional Programming 777

• What Are Delegates? 782

• Delegate Types 782

• Delegate Instances 787

• Invoking Delegates 799

• Putting It Together: An Extensible Calculator 803

• Case Study: Delegates Used in LINQ to Objects 807

• Asynchronous Invocation 811

• Combining Delegates 824

In the previous chapters, you’ve seen how object-oriented programming provides a good paradigm to tame the complexity involved with the creation of applications. Nevertheless, object orientation is not a silver bullet that solves all problems. Different paradigms have emerged over the years to deal with other complex aspects of application development.

Functional programming is one such paradigm that got a place in the .NET ...

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