C# assemblies, whats in an assembly?

Question

I\'m trying to understand the internal access modifier in C#. I can\'t seem to understand what an assembly is exactly, and what part of my program is held inside that assemb

Answer 1

Basically, you cannot make a variable visible only from within a given namespace. As anybody can define any namespace, this would make the idea of internal void: you would just have to write

namespace System
{
    public static MySystemInternalSpy
    {
        public static void SpyInternals()
        {
            ...
        }
    }
}

to gain access to any variable, class or method defined as internal in the System namespace, for instance.