C# 3.0 compatibility on .Net 2.0

Question

What are the C# 3.0 language features we can use in an application that targets .Net 2.0 framework ?

PS:I know few like Lambda expressions and var keyword

Answer 1

I have an article on this very topic.

In brief:

Supported:

• Automatically implemented properties, implicitly typed local variables and arrays, object and collection initializers, anonymous types, partial methods, lambda expressions converted into delegate types.

Partially supported:

• Extension methods (requires an attribute) and query expressions (requires something like LINQBridge to be useful)

Not supported:

• Lambdas converted into expression trees

In fact, I have heard that conversion into expression trees is available with the aid of Mono's implementation of System.Core. I haven't tried it yet though... I keep meaning to do so (and then update the page).