FSClient.Broker.XFERContextMenu C# (CSharp) Method

		public ContextMenu XFERContextMenu(){
			if (_XFERContextMenu == null){
				_XFERContextMenu = new ContextMenu();
				_XFERContextMenu.Opened += XFERContextMenuOpened;
			}
			return _XFERContextMenu;
		}

        void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            PreviewTextInput         += MainWindow_PreviewTextInput;
            txtNumber.PreviewKeyDown += txtNumber_PreviewKeyDown;
            //txtNumber.PreviewTextInput += MainWindow_PreviewTextInput;
            PreviewKeyDown += MainWindow_PreviewKeyDown;             //return must be handled seperately as buttons are triggered on down it seems
            MouseUp        += MainWindow_MouseUp;

            Call.CallStateChanged              += CallStateChanged;
            Call.ActiveCallChanged             += ActiveCallChanged;
            Account.accounts.CollectionChanged += accounts_CollectionChanged;
            Broker.FreeswitchLoaded            += FreeswitchLoaded;
            broker      = Broker.get_instance();
            DataContext = status;
            AccountDefaultConverter.normal_account_color  = (SolidColorBrush)Resources["GridRowSpecialFGColor"];
            AccountDefaultConverter.default_account_color = (SolidColorBrush)Resources["RowHighlightFGColor"];
            broker.call_activeChanged         += CallActiveChanged;
            broker.active_call_ringingChanged += CallRingingChanged;
            broker.MutedChanged              += MuteChanged;
            broker.DNDChanged                += DNDChanged;
            broker.CanEndChanged             += CanEndChanged;
            broker.themeChanged              += ThemeChanged;
            broker.UseNumberOnlyInputChanged += UseNumberOnlyInputChanged;
            UseNumberOnlyInputChanged(null, false);            //trigger an update
            broker.SpeakerphoneActiveChanged += SpeakerActiveChanged;
            CurrentCallInfo.Visibility        = Visibility.Hidden;
            Windows.systray_icon_setup();
            switch (broker.GUIStartup)
            {
            case "Calls":
                borderAccounts.Visibility = Visibility.Hidden;
                break;

            case "Accounts":
                borderCalls.Visibility = Visibility.Hidden;
                break;

            case "Dialpad":
                borderAccounts.Visibility = Visibility.Hidden;
                borderCalls.Visibility    = Visibility.Hidden;
                break;
            }
            ResizeForm();
            btnTransfer.ContextMenu    = broker.XFERContextMenu();
            borderTransfer.ContextMenu = broker.XFERContextMenu();
            if (broker.theme != "Steel")
            {
                ReloadTheme();
            }

            AcceptEnterForDoubleClick(btnConferenceCall, btnConferenceDoubleClick);
            SpeakerActiveChanged(null, false);
            MuteChanged(null, false);
            DNDChanged(null, false);
        }