How to use guids in c #?

Question

This code:

Something = new Guid() 

returns:

00000000-0000-0000-0000-000000000000

all the time, and I can’t say why? So why?

Answer 1

You must use Guid.NewGuid()

Answer 2

Just explain why you need to call NewGuid and not use the default constructor ... In .NET, all structures (value types such as int, decimal, Guid, DateTime, etc.) must have a constructor without parameters without parameters, which initializes all fields by default. In the case of Guid, the bytes that make up Guid are zero. Instead of making a special case for Guid or making it a class, they use the NewGuid method to generate a new “random” guide.

Answer 3

In System.Guid.

To dynamically create a GUID in code:

 Guid messageId = System.Guid.NewGuid(); 

To see its meaning:

 string x = messageId.ToString(); 

Answer 4

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

Answer 5

something = new Guid() is equal to something = Guid.Empty .

Use Guid.NewGuid(); instead