Best way to convert IEnumerable to string?

Question

Why isn\'t it possible to use fluent language on string?

For example:

var x = \"asdf1234\";
var y = new string(x.TakeWhile(char.IsLetter         


        

Answer 1

How about this to convert IEnumerable to string:

string.Concat(x.TakeWhile(char.IsLetter));