Microsoft Visual C# Step by Step, Ninth Edition

CHAPTER 12

Working with inheritance

After completing this chapter, you will be able to:

• Create a derived class that inherits features from a base class.

• Control method hiding and overriding by using the new, virtual, and override keywords.

• Limit accessibility within an inheritance hierarchy by using the protected keyword.

• Define extension methods as an alternative mechanism to using inheritance.

Inheritance is a key concept in the world of object-oriented programming. You can use inheritance as a tool to avoid repetition when defining different classes that have some features in common and are quite clearly related to one another. Perhaps they are different classes of the same type, each with its own distinguishing feature—for example, managers, ...