How to built-in sort generic collection using one of the attribute?

using System;
using System.Collections.Generic;
using System.DirectoryServices.AccountManagement;
using System.Linq;

namespace EE_Q28585582
{
	class Program
	{
		private static List<UserPrincipal> users = new List<UserPrincipal>();

		static void Main(string[] args)
		{
			PrincipalContext context = new PrincipalContext(ContextType.Domain);
			UserPrincipal user = new UserPrincipal(context);
			PrincipalSearcher searcher = new PrincipalSearcher(user);
			foreach (Principal result in searcher.FindAll())
			{
				UserPrincipal upe = result as UserPrincipal;
				if (upe != null)
					users.Add(upe);
			}

			foreach (UserPrincipal up in users)
				Console.WriteLine(up.Name);
			Console.ReadLine();

			var usort = (from up in users orderby up.SamAccountName select up);
			foreach (UserPrincipal up in usort)
				Console.WriteLine(up.Name);
			Console.ReadLine();
		}
	}
}

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list.Sort((left, right) => string.Compare(left.SAMAccountName, right.SAMAccountName));

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list.Sort((UserPrincipal left, UserPrincipal right) => string.Compare(left.SAMAccountName, right.SAMAccountName));

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s.Sort((left, right) => { return string.Compare(left.SamAccountName, right.SamAccountName); });

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