Question

I want to jump into coding by contract. I got VS2010 (with the C# 4.0 compiler) but I have to target the 3.5 framework.

What 3rd party code by contract library has classes and interface the most like the .NET 4.0 ones?

Answer 1

From the user guide:

Starting with the CLR v4, the Contract
class and related types reside in
mscorlib.dll. Prior to CLR v4, these
types appear in a separate assembly
called Microsoft .Contracts. dll that
is installed under
%PROGRAMFILES%/Microsoft/Contracts/PublicAssemblies.
You can need to add a reference to
this assembly if you are compiling
against a pre 4.0 CLR.

You may have some interesting issues if you want to use the same built assembly against both 3.5 and 4.0 (I don’t know – it may just work) but if you’re just using 3.5, that should be okay.

The extension installs into VS2008 as well as VS2010, I believe.