C# in AD

public List<string> GetMembers(string adGroup)
        {
            DirectoryEntry domain;
            if (unBox.Text == String.Empty) //defaultuser
            {
                domain = new DirectoryEntry("GC://" + csBox.Text);
            }
            else //just in case če hočeš kot drugi uporabnik kot tist k je currently logged  
            {
                domain = new DirectoryEntry("GC://" + csBox.Text, unBox.Text, pwBox.Text);
            }
            DirectorySearcher dsUsers = new DirectorySearcher(domain);
            //dsUsers.Filter = "(&(objectClass=user)(objectCategory=person)(memberOf=CN=" + adGroup + ",OU=CG Users,DC=domain,DC=com))";
                  EN DS FILTER le nared:D svojga ti ne povem, dam ti samo template pa en primer
            //dsUsers.Filter = "(&(objectClass = user)(objectCategory = person))";
            dsUsers.Filter = filterBox.Text;
            dsUsers.PropertiesToLoad.Add("samAccountName");

            List<string> groupUsers = new List<string>();
            foreach (SearchResult result in dsUsers.FindAll())
            {
                string user = result.Properties["samAccountName"][0].ToString();
                groupUsers.Add(user);
            }
            return groupUsers;
        }