class Domain
    {
        public  string IsUserExistInDomain(string ouInfo, string domainAdmin, string domainPwd)
        {
            Write_log.WriteLog("开始");
            string strOUInfo = ouInfo;
            string strDomainAdmin = domainAdmin;
            string strDomainPassword = domainPwd;
            string strDomainIP = ConfigurationManager.AppSettings["DomainIP"].ToString().Trim();

            string strTemp = "LDAP://" + strDomainIP.Trim() + "/" + strOUInfo.Trim();
            DirectoryEntry objDE = new DirectoryEntry(strTemp, strDomainAdmin.Trim(), strDomainPassword.Trim());
            string strFilter = "(&(objectCategory=organizationalUnit)(objectClass=organizationalUnit))";
            DirectorySearcher objSearcher = new DirectorySearcher(objDE, strFilter);
            //objSearcher.Sort = new SortOption("name", SortDirection.Ascending);
            SearchResultCollection src = null;
            try
            {
                src = objSearcher.FindAll();//判断域是否连接成功
            }
            catch (Exception err)
            {
                MessageBox.Show("LDAP,帐号，密码出错，请重新输入！" + err.Message);
                return "-1";
            }

            OleDbTransaction tran = null;
            OleDbCommand cmd = null;

            OleDbConnection conn = new OleDbConnection();
            string connStr = new DBHelper().ConnectionString("bpm");
            string strLFAccount = string.Empty;
            string hrID = string.Empty;
            try
            {
                conn.ConnectionString = connStr;
                conn.Open();
                tran = conn.BeginTransaction();
                cmd = conn.CreateCommand();
                cmd.Transaction = tran;
                DeleteADUsers(cmd);//delete all adusers that in bpm_AD_USER table，该方法不存在，但不影响对于域操作的理解

　　　　　　　　　//　对于域信息的操作，有些方法暂时没有提供，但不影响对于域操作的理解
                foreach (SearchResult sr in src)
                {
                    string strOrgName = sr.Properties["name"][0].ToString();
                    DirectoryEntry de = sr.GetDirectoryEntry();
                    foreach (DirectoryEntry child in de.Children)
                    {
                        if (child.SchemaClassName.Contains("user"))
                        {
                            if (null == child.Properties["description"].Value || "" == child.Properties["description"].Value.ToString().Trim())
                            {
                                continue;
                            }

                            if (null == child.Properties["userprincipalname"].Value || "" == child.Properties["userprincipalname"].Value.ToString().Trim())
                            {
                                continue;
                            }
                            hrID = child.Properties["description"].Value.ToString().Trim();
                            //用户的ou名称
                            string ouName = child.Name.Split(new char[] { '=' })[1].ToString();
                            //用户的帐号
                            if (ouName.Contains("\\"))
                            {
                                string start = ouName.Split(new char[] { '\\' })[0].ToString();
                                string end = ouName.Split(new char[] { '\\' })[1].ToString().Substring(1);
                                ouName = start + "_" + end;
                            }
                            strLFAccount = common.strLiveflowName(child.Properties["userprincipalname"].Value.ToString().Trim()).ToLower();

                            string USER_Mb = "";
                            string USER_Tel = "";
                            string USER_Email = "";
                            if (child.Properties["mail"].Value != null)
                            {
                                USER_Email = child.Properties["mail"].Value.ToString();
                            }
                            if (child.Properties["mobile"].Value != null)
                            {
                                USER_Mb = child.Properties["mobile"].Value.ToString();
                            }
                            if (child.Properties["telephonenumber"].Value != null)
                            {
                                USER_Tel = child.Properties["telephonenumber"].Value.ToString();
                            }
                            InsertADUsers(cmd,strLFAccount,hrID,ouName,USER_Email,USER_Mb,USER_Tel);
                        }
                    }
                }
               tran.Commit();
            }
            catch
            {
                if (tran.Connection.State == ConnectionState.Open)
                {
                   tran.Rollback();
                }
                throw;
            }
            finally
            {
                conn.Close();
                conn.Dispose();
            }

            //ArrayList listADOrgCode = new ArrayList();

            Write_log.WriteLog("结束");
           // MessageBox.Show("域用户同步完成");
            return strLFAccount;

        }
}

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