Inheritance

Inheritance is a fundamental principle of object-oriented programming. It allows a class to "inherit" (behavior or characteristics) of another, more general class.

Inheritance in .NET is defined with a special construct in the class declaration. In .NET and other modern programming languages, a class can inherit from a single class only (single inheritance), unlike C++ which supports inheriting from multiple classes (multiple inheritance). This limitation is necessitated by the difficulty in deciding which method to use when there are duplicate methods across classes (in C++, this problem is solved in a very complicated manner). In .NET, classes can inherit multiple interfaces. The class from which we inherit is referred to as parent class or base class / super class.

Sources:

Svetlin Nakov & Co Fundamentals of computer programming with C#: Sofia, 2013 - 1122 с. - 809