Access Modifiers

Access modifier	Access level granted	Elements you can declare with this access level	Declaration context within which you can use this modifier
Public	Unrestricted: Any code that can see a public element can access it	Interfaces Modules Classes Structures Structure members Procedures Properties Member variables Constants Enumerations Events External declarations Delegates	Source file Namespace Interface Module Class Structure
Protected	Derivational: Code within the class that declares a protected element, or a class derived from it, can access the element	Interfaces Classes Structures Procedures Properties Member variables Constants Enumerations Events External declarations Delegates	Class
Friend	Assembly: Code within the assembly that declares a friend element can access it	Interfaces Modules Classes Structures Structure members Procedures Properties Member variables Constants Enumerations Events External declarations Delegates	Source file Namespace Interface Module Class Structure
Protected Friend	Union of Protected and Friend: Code within the same class or the same assembly as a protected friend element, or within any class derived from the element's class, can access it	Interfaces Classes Structures Procedures Properties Member variables Constants Enumerations Events External declarations Delegates	Class
Private	Declaration context: Code within the type that declares a private element, including code within contained types, can access the element	Interfaces Classes Structures Structure members Procedures Properties Member variables Constants Enumerations Events External declarations Delegates	Module Class Structure