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Object-oriented Programming in C#
Specialization, Extension, and Inheritance
Visibility modifiers in C#

The visibility of types in assemblies and members in classes are controlled by visibility modifiers

  • Visibility of a type (e.g. a class) in an assembly

    • internal: The type is not visible from outside the assembly

    • public: The type is visible outside the assembly

  • Visibility of members in type (e.g., methods in classes)

    • private: Accessible only in the containing type

    • protected: Accessible in the containing type and in subtypes

    • internal: Accessible in the assembly

    • protected internal: Accessible in the assembly and in the containing type and its subtypes

    • public: Accessible whenever the enclosing type is accessible


Go to exercisePrivate Visibility and inheritance
Go to exerciseInternal Visibility