When Should You Use Nested Classes in C#?

Why You'll Find Nested Classes in C#

When you want to encapsulate closely related functionality within a broader class definition, nested classes come into play. They offer distinct advantages in specific scenarios.

Managing Access Control

One compelling reason to use nested classes is to control access to specific code sections. Nested classes can be declared private, allowing access only within the enclosing class. This improves encapsulation by restricting the use of certain functionalities to authorized portions of the program.

Hierarchical Inheritance

Nested classes facilitate hierarchical inheritance by allowing for the creation of multiple levels of subclasses within a single superclass. This enables the organization of complex code structures and the sharing of implementation details across layers of inheritance.

Factory Design Pattern

Nested classes can synergize with the factory design pattern, providing an effective way to create objects without specifying their exact concrete classes. The nested classes act as factory methods, encapsulating the object creation logic within the enclosing class.

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