Is nested class good practice?

In C#, we can define a class within another class . It is known as a nested class. For example, class OuterClass { …

Nested Class can be used whenever you want to create more than once instance of the class or whenever you want to make that type more available. Nested Class increases the encapsulations as well as it will lead to more readable and maintainable code.

Scope of a nested class is limited by the scope of its (outer) enclosing class . If nothing is specified, the nested class is private (default). Any class can be inherited into another class in C# (including a nested class). The user can inherit a nested class from outer class.5 Ara 2019

As mentioned in the section Nested Classes, nested classes enable you to logically group classes that are only used in one place, increase the use of encapsulation, and create more readable and maintainable code .