using System;

using System.DirectoryServices.AccountManagement;

​

namespace GroupSendEmail

{

    class ADInfo

    {

        public static void Main(string[] args)

        {

            try

            {

                GetADUserName("intranet.nav.gov.hu", args[0], args[1]);

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.Message);

            }

        }

​

        private static string UserDisplayName

        {

            get;

            set;

        }

​

        public static string GetADUserName(string adPath, string userName, string nameType)

        {

            try

            {

                using (PrincipalContext principalContext = new PrincipalContext(ContextType.Domain, adPath))

                {

                    UserPrincipal user = UserPrincipal.FindByIdentity(principalContext, userName);

                    if (user != null)

                    {

                        switch (nameType)

                        {

                            case "DisplayName":

                            {

                                UserDisplayName = user.DisplayName.ToString();

                                break;

                            }

​

                            case "PrincipalName":

                            {

                                UserDisplayName = user.UserPrincipalName.ToString();

                                break;

                            }

                        }

                    }

                    else

                    {

                        UserDisplayName = "Invalid AD user name";

                    }

​

                    user.Dispose();

                    principalContext.Dispose();

                }

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.Message);

            }

​

            return UserDisplayName;

        }

    }

}