Inheritance

Classes (but not structs) support the concept of inheritance.

A class that derives from the base class automatically has all the public, protected, and internal members of the base class except its constructors and destructors.

In C# one class can only inherit from a single class.

The following code defines a Person class. Person class has all common fields for all person types.

class Person{
   public string name;
}

When declaring the Employee class we can build the employee type based on person type.

class Employee:Person{
   public string companyName;
}

Employee inherits the name field from Person.