The Guid struct represents a globally unique identifier: a 16-byte value.
To create a new random Guid, call the static Guid.NewGuid method:
using System;
class Sample
{
public static void Main()
{
Guid g = Guid.NewGuid();
Console.WriteLine(g.ToString());
}
}
The output:
e242fdf8-d6de-42ed-97e8-76e8c6ae6df8