Fast and clever way to get the NON FIRST segment of a C# string

Question

I do a split(\' \') over an string and I want to pull the first element of the returned string in order to get the rest of the string.

f.e. \"THIS IS

Answer 1

try

string X = "THIS IS AN AMAZING STRING";
string Y = (X.IndexOf ( " " ) < 0) ? string.Empty : X.Substring (X.IndexOf ( " " )  + 1); // Y = IS AN AMAZING STRING

As per comment (IF X is guaranteed to be a valid string with at least one space) a simpler version without checking etc.:

string Y = X.Substring (X.IndexOf ( " " )  + 1);