public ConfigVarTab(MainWindow mainWindow)
        {
            this._mainWindow = mainWindow;

            this.DataContext = this;

            InitializeComponent();
        }        
        public ConfigConnectionsAndSymbolSources(MainWindow mainWindow)
        {
            this._mainWindow = mainWindow;

            this.DataContext = this;

            InitializeComponent();
        }
        private void Main(object sender, StartupEventArgs e)
        {

            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;

            clientForm = new MainWindow();

            clientForm.Show();

        }