Question

I’m trying to find a reference for the default visibility of various aspects of C#. Class types, fields, methods, enums, etc.

Can someone provide a list of these along with their default visibility (i.e., no prefixed modifier)?

Answer 1

All of the information you are looking for can be found here and here (thanks Reed Copsey):

From the first link:

Classes and structs that are declared directly within a namespace (in other words, that are not nested within other classes or structs) can be either public or internal. Internal is the default if no access modifier is specified.

…

The access level for class members and struct members, including nested classes and structs, is private by default.

…

interfaces default to internal access.

…

Delegates behave like classes and structs. By default, they have internal access when declared directly within a namespace, and private access when nested.

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From the second link:

Top-level types, which are not nested in other types, can only have internal or public accessibility. The default accessibility for these types is internal.

And for nested types:

Members of    Default member accessibility
----------    ----------------------------
enum          public
class         private
interface     public
struct        private