Murach's C# - How to work with inheritance

This chapter shows you how inheritance is used throughout the .NET classes and also how you can use inheritance in your own C# classes. When you're done, you'll know how to create base and subclasses, how polymorphism works, and how to use casting with inheritance. To make sure that you get all of that, this chapter presents a complete application that uses a Product base class, Book and Software subclasses, and a ProductList class that inherits the .NET ArrayList class. Wow!
Chapter 14 How to work with inheritance
An introduction to inheritance 400
How inheritance works 400
How the .NET Framework uses inheritance 402
Methods inherited from the System.Object class 404
How to use inheritance in your applications 406
Basic skills for working with inheritance 408
How to create a base class 408
How to create a subclass 410
How polymorphism works 412
An inheritance version of the Product Maintenance application 414
The operation of the Product Maintenance application 414
The code for the Product, Book, and Software classes 416
The code for the ProductList class 418
The code for the Product Maintenance form 422
The code for the New Product form 424
Object types and casting 426
How to use the Type class to get information about an object's type 426
How to use casting with inheritance 428
How to work with abstract and sealed classes 430
How to work with abstract classes 430
How to work with sealed classes 432


© Copyright 1998-2008 Mike Murach & Associates, Inc.  All rights reserved.

Murach's C#

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