C# GUID Tutorial - The EECS Blog

C# GUID

About

In this code snippet, we will take a look at GUIDs in C#.

A GUID or a Globally Unique Identifier(also known as a Universally unique identifier) is an alphanumeric sequence of characters that make up a completely unique identifier(at least in theory). One place GUIDs can be used is with databases to serve as a unique ID.

Let’s look at the code example below to see how to make a GUID.

Code:

using System;
namespace guid
{
    class Program
    {
        static void Main(string[] args)
        {
            //GUID creation.
            Guid GUID = Guid.NewGuid();
            //GUID to string conversion.
            string GUIDString = GUID.ToString();
            Console.WriteLine(GUIDString);
            //GUID in string format to guid conversion.
            Guid backToGUID = Guid.Parse(GUIDString);
            Console.ReadLine();
        }
    }
}