Question

I always prefer lambda expression to perform operations on collection. But i can achieve same thing with LINQ which is simpler than Lambda expression. but, I am still confused a bit about which comes at top in Abstraction Level & why?

Answer 1

I suspect by “LINQ” you mean “query expressions”:

var query = from x in y
            where x.Foo
            select x.Bar

And I suspect by “lambda expression” you mean calling the extension methods directly:

var query = y.Where(x => x.Foo)
             .Select(x => x.Bar);

Both of these are really LINQ…

Query expressions are at a slightly higher abstraction level I guess, and that there’s more work required to get down to the real operations… but not terribly significantly, given that the conversion process is fairly mechanical.