using System;

using System.Security.Principal;

using System.Linq;

using System.Security.Claims;

public class Program

{

    public static void Main()

    {

        var roles = new[] { "Role1", "Role2" };

        var identity = new GenericIdentity("Test", "Test");

        var principal = new GenericPrincipal(identity, roles);

​

        // We need to get the claims associated with the Principal instead of the Identity

        Console.WriteLine("Roles associated with the GenericPrincipal:");

        foreach(var role in principal.Claims.Where(c => c.Type == ClaimTypes.Role).Select(c => c.Value))

        {

            Console.WriteLine(role);

        }

        Console.WriteLine(String.Empty);

        Console.WriteLine("All Claims associated with the GenericPrincipal:");

        foreach(var claim in principal.Claims)

        {

            Console.WriteLine(claim);

        }

        Console.WriteLine(String.Empty);

        Console.WriteLine("All Claims associated with the GenericIdentity prior to explicitly adding role Claims:");

        foreach (var claim in identity.Claims)

        {

            Console.WriteLine(claim);

        }

        // Explicitly add role Claims to the GenericIdentity

        foreach (var role in roles)

        {

            identity.AddClaim(new Claim(ClaimTypes.Role, role));

        }

        Console.WriteLine(String.Empty);

        Console.WriteLine("All Claims associated with the GenericIdentity after explicitly adding role Claims:");

        foreach (var claim in identity.Claims)

        {

            Console.WriteLine(claim);

        }

        Console.WriteLine(String.Empty);

        Console.WriteLine("Complete");

    }

}