C#

<?xml version="1.0" encoding="UTF-8"?>
<Root>
<Books>
  <Book>
   <Title>X</Title>
   <Author>Mr x</Author>
  </Book>
</Books>
<Movies>
  <Movie> Movie Y</Movie>
</Movies>
</Root>

public XElement getBooksElement(List<Book> books)
{
XElement ret = new XElement("Books");
foreach(Book b in books)
                ret.Add(getBookElement(b));
            return ret;
}
public XElement getBookElement(Book book)
        {
XElement ret = new XElement("Book");
ret.Add(new XElement("Title", b.Title));
ret.Add(new XElement("Author", b.Author));
            return ret;
        }

public void RunPowershell(PSCommand pscmd = null, String script = null)
        {
            Runspace remoteRunspace = null;
            PSDataCollection<ErrorRecord> errors = new PSDataCollection<ErrorRecord>();

            OpenRunspace(_uri, _schema, _username, _password, ref remoteRunspace);

            remoteRunspace.Open();
            powershell.Runspace = remoteRunspace;
            powershell.Streams.ClearStreams();
            powershell.Commands.Clear();

            if (pscmd != null)
            {
                String debugLog = "[RunPowershell] Executing powershell: ";
                foreach (Command cmd in pscmd.Commands)
                {
                    debugLog += cmd.CommandText;
                    foreach (CommandParameter cp in cmd.Parameters)
                        debugLog += String.Format("-{0} {1}", cp.Name, cp.Value.ToString());
                }

                Log.Debug(debugLog);
                powershell.Commands = pscmd;
            }
            else if (script != null)
            {
                Log.Debug("[RunPowershell] Executing powershell: " + script);
                powershell.Commands.AddScript(script);
            }

            powershell.Invoke();
            ThrowIfError();

            Log.Debug("[Exited] RunPowershell");
        }

        private void OpenRunspace(string uri, string schema, string username, string password, ref Runspace remoteRunspace)
        {
            SecureString securePass = new SecureString();
            foreach (char c in password.ToCharArray())
                securePass.AppendChar(c);

            PSCredential psc = new PSCredential(username, securePass);
            WSManConnectionInfo wmci = new WSManConnectionInfo(new Uri(uri), schema, psc);
            wmci.AuthenticationMechanism = AuthenticationMechanism.Basic;
            remoteRunspace = RunspaceFactory.CreateRunspace(wmci);
        }

public void Execute()
        {
            try
            {
                if (String.IsNullOrEmpty(Identity))
                    throw new Exception("Identity must be specified.");

                if (String.IsNullOrEmpty(Alias))
                    throw new Exception("Alias must be specified.");

                if (String.IsNullOrEmpty(DisplayName))
                    throw new Exception("Display Name must be specified.");

                if (String.IsNullOrEmpty(PrimarySmtpAddress))
                    throw new Exception("The Primary Smtp Address must be specified.");

                if (String.IsNullOrEmpty(CompanyCode))
                    throw new Exception("The Company Code must be specified.");

                // Set our command for Enable-Mailbox
                String enableMailboxCmd = String.Format(@"Enable-Mailbox -Identity '{0}' -AddressBookPolicy '{1} ABP' -Alias '{2}' -DisplayName '{3}' -PrimarySmtpAddress '{4}';",
                                                          Identity, CompanyCode, Alias, DisplayName, PrimarySmtpAddress);

                // Set our command for Set-Mailbox
                String setMailbox = String.Format(@"Set-Mailbox -Identity '{0}' -OfflineAddressBook '{1} OAL' -CustomAttribute1 '{2}' -IssueWarningQuota:{3}KB -ProhibitSendQuota:{4}KB -ProhibitSendReceiveQuota:{5}KB -UseDatabaseQuotaDefaults $False;",
                                                          Identity, CompanyCode, CompanyCode, WarningQuota, ProhibitSendQuota, ProhibitSendReceiveQuota);

                // Set our command for Set-CASMailbox
                String setCasMailbox = String.Format(@"Set-CASMailbox -Identity '{0}' -ActiveSyncEnabled:${1} -ActiveSyncMailboxPolicy '{2}' -IMAPEnabled:${3} -POPEnabled:${4} -MAPIEnabled:${5} -OWAEnabled:${6} -OWAMailboxPolicy '{7}';",
                                                          Identity, ActiveSyncEnabled.ToString(), ActiveSyncPolicy, IMAPEnabled.ToString(), POPEnabled.ToString(), MAPIEnabled.ToString(), OWAEnabled.ToString(), OWAPolicy);

                this.RunPowershell(null,
                                   enableMailboxCmd +
                                   setMailbox +
                                   setCasMailbox);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                this.Close();
            }
        }