The difference between Mono C# Compiler and MS C# Compiler Regarding Scope
c#, compiler-construction, compiler-errors, mono, visual-studio-2010
Solution
The VS compiler follows the specification. Not sure what is the reason it is allowed in Mono implemetation.
C# Specification, section 10.11.1 Constructor initializers:
An instance constructor initializer cannot access the instance being created. Therefore it is a compile-time error to reference this in an argument expression of the constructor initializer, as is it a compile-time error for an argument expression to reference any instance member through a simple-name.
Problem
I'm running in a corner case here with regarding the difference with scoping of instance methods/properties in C#. Here is the code: ``` public class Base { public EventHandler Click {get;set;} public Base(EventHandler clickHandler) { this.Click = clickHandler; } } public class Derived: Base { public Derived(): base((sender, e) => Execute()) { } private void Execute() { } } ``` The code compiles fine on MonoDevelop 3.0, but gives an error in VS2010 saying: An object reference is required for the non-static field, method, or property "Base.Execute" Basically, it boils down to the fact that when calling base class's constructor from derived class's constructor, MS's C# compiler does not allow access to derived class's methods/properties, etc. How so?