Mike Hadlow shows us a couple of examples of things that you can do to strings with LINQ:

string text = "The quick brown fox jumped over the lazy dog.";

// substring
text.Skip(4).Take(5).Write();   // "quick"

// remove characters
text.Where(c => char.IsLetter(c)).Write(); // "Thequickbrownfoxjumpedoverthelazydog."

string map = "abcdefg";

// strip out only the characters in map
text.Join(map, c1 => c1, c2 => c2, (c1, c2) => c1).Write(); // "ecbfedeeadg"

// does text contain q?
text.Contains('q').Write(); // true

The examples come from LINQ in Action.

LINQ in Action by Fabrice Marguerie, Steve Eichert, Jim Wooley Read more about this book...