How to use Guids in C#?

Question

This Code:

Something = new Guid() 

is returning:

00000000-0000-0000-0000-000000000000

all the time

Answer 1

 Guid g1 = Guid.NewGuid();

 string s1;
 s1 = g1.ToString();
 Console.WriteLine("{0}",s1);
 Console.ReadKey();