Page 79 - CSharp/C#

private class Baz
{
public string Value { get; set; }
}

public void Do()
{
var baz = new Baz { Value = 42 };
}
}

public class Bar()
{
public Bar()
{
var myInstance = new Foo();

// Compile Error - not accessible due to private modifier
var someValue = foo.someProperty;
// Compile Error - not accessible due to private modifier
var baz = new Foo.Baz();
}
}

internal

The internal keyword makes a class (including nested classes), property, method or field available
to every consumer in the same assembly:

internal class Foo
{
internal string SomeProperty {get; set;}
}

internal class Bar
{
var myInstance = new Foo();
internal string SomeField = foo.SomeProperty;

internal class Baz
{
private string blah;
public int N { get; set; }
}
}

This can be broken to allow a testing assembly to access the code via adding code to
AssemblyInfo.cs file:

using System.Runtime.CompilerServices;

[assembly:InternalsVisibleTo("MyTests")]

protected

The protected keyword marks field, methods properties and nested classes for use inside the

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