Добавление пользователей в AD Universal Group из разных доменов C #

В отношении ответа BaldPate, если глобальный каталог доступен только для чтения, нам необходимо прочитать и разрешить пользователей в разных доменах с использованием порта 3268, а затем СОХРАНИТЬ пользователей, использующих порт 389 в одном и том же контексте. Это может быть выполнено с помощью следующего кода (обратите внимание на отдельные вызовы на 3268 и по умолчанию 389 портов), и благодаря BaldPate для этого ясно:

using System;
using System.Collections;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.DirectoryServices.AccountManagement;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Configuration;

namespace OurUsers
{
class SyncAD
{
    #region Variables

    private string sDomain = "sw.main.company.com";
    private string sDomainGC = "sw.main.company.com:3268";
    private string sDefaultOU = "DC=sw,DC=main,DC=company,DC=com";
    private string sDefaultRootOU = "DC=main,DC=company,DC=com";
    private string sGroupName = "Production_Universal_AD_Group";
    private string connectionString = "Server=OurServerName\\PROD; Integrated Security=True; Initial Catalog=OurUsers";
    private string sqlAdd = "SELECT FullID FROM ViewFolkstoAdd";
    private string sqlRemove = "SELECT FullID FROM ViewFolkstoRemove";

    #endregion
    public void SyncADUsers()
    {
        // Get Database Ready and Remove Users
        SqlConnection connectionRemove = new SqlConnection(connectionString);
        SqlCommand commandRemove = new SqlCommand(sqlRemove, connectionRemove);
        connectionRemove.Open();
        SqlDataReader readerRemove = commandRemove.ExecuteReader();

        if (readerRemove.HasRows)
        {
            int i = 0;
            while (readerRemove.Read())
            {
                string sUserName = readerRemove.GetString(0);
                RemoveUserFromGroup(sUserName, sGroupName);
                i = i + 1;
                Console.WriteLine("{0} {1}", i, sUserName);
            }
        }
        else
        {
            Console.WriteLine("No rows found.");
        }
        readerRemove.Close();

        // Get Database Ready and Add Users
        SqlConnection connectionAdd = new SqlConnection(connectionString);
        SqlCommand commandAdd = new SqlCommand(sqlAdd, connectionAdd);
        connectionAdd.Open();
        SqlDataReader readerAdd = commandAdd.ExecuteReader();

        if (readerAdd.HasRows)
        {
            int i = 0;
            while (readerAdd.Read())
            {
                string sUserName = readerAdd.GetString(0);
                AddUserToGroup(sUserName, sGroupName);
                i = i + 1;
                Console.WriteLine("{0} {1}", i, sUserName);
            }
        }
        else
        {
            Console.WriteLine("No rows found.");
        }
        readerAdd.Close();
    }

    /// Gets a certain user on Active Directory
    /// Returns the UserPrincipal Object
    public UserPrincipal GetUser(string sUserName)
    {
        PrincipalContext oPrincipalContext = GetPrincipalContextGC();
        UserPrincipal oUserPrincipal = UserPrincipal.FindByIdentity(oPrincipalContext, sUserName);
        return oUserPrincipal;
    }

    /// Adds the user for a given group
    /// Returns true if successful
    public bool AddUserToGroup(string sUserName, string sGroupName)
    {
        try
        {
            UserPrincipal oUserPrincipal = GetUser(sUserName);
            GroupPrincipal oGroupPrincipal = GetGroup(sGroupName);
            if (oUserPrincipal != null && oGroupPrincipal != null)
            {
                oGroupPrincipal.Members.Add(oUserPrincipal);
                oGroupPrincipal.Save();
            }
            return true;
        }
        catch
        {
            return false;
        }
    }

    /// Removes user from a given group
    /// Returns true if successful
    public bool RemoveUserFromGroup(string sUserName, string sGroupName)
    {
        try
        {
            UserPrincipal oUserPrincipal = GetUser(sUserName);
            GroupPrincipal oGroupPrincipal = GetGroup(sGroupName);
            if (oUserPrincipal != null && oGroupPrincipal != null)
            {
                oGroupPrincipal.Members.Remove(oUserPrincipal);
                oGroupPrincipal.Save();
            }
            return true;
        }
        catch
        {
            return false;
        }
    }

    /// Gets PrincipalContext from the Local Domain
    /// Returns the PrincipalContext
    public PrincipalContext GetPrincipalContext()
    {
        PrincipalContext oPrincipalContext = new PrincipalContext(ContextType.Domain, sDomain, sDefaultOU, ContextOptions.Negotiate);
        return oPrincipalContext;
    }

    /// Gets PrincipalContext from the Global Catalog
    /// Returns the PrincipalContext
    public PrincipalContext GetPrincipalContextGC()
    {
        PrincipalContext oPrincipalContext = new PrincipalContext(ContextType.Domain, sDomainGC, sDefaultRootOU, ContextOptions.Negotiate);
        return oPrincipalContext;
    }

    /// Gets a certain group on Active Directory
    /// Returns the GroupPrincipal Object
    public GroupPrincipal GetGroup(string sGroupName)
    {
        PrincipalContext oPrincipalContext = GetPrincipalContext();
        GroupPrincipal oGroupPrincipal = GroupPrincipal.FindByIdentity(oPrincipalContext, sGroupName);
        return oGroupPrincipal;
    }
}
}