C# variable scoping not consistent?

Question

C# is quite nit-picking when it comes to variable scoping. How is it possible that it accepts this code:

class Program
{
    int x = 0;

    void foo()
    {         


        

Answer 1

This is not a naming conflict: in C#, local variables take precedence over instance variables with the same name, because their scope is narrower.

When the compiler matches a name reference to a name declaration, it uses the matching declaration with the narrowest scope

See documentation on Reference Matching for detailed information on the subject.