public MainWindow()
		{
			this.InitializeComponent();
            //MAKE SURE TO INCLUDE THIS LINE OR THE APPLICATION WILL NOT CLOSE
            //BECAUSE THE WINDOWS ARE STILL IN MEMORY
            Application.Current.ShutdownMode = ShutdownMode.OnMainWindowClose;

            //ResourceDictionary skin = new ResourceDictionary();
            //skin.Source = new Uri(@"/CS3280GroupProject/ExpressionDark.xaml", UriKind.Absolute);
            //App.Current.Resources.MergedDictionaries.Add(skin);

            try
            {
                SQLStatements = new clsSQLStatements();

                infoLabel.Content = "";
                lblInvoiceNumber.Visibility = Visibility.Hidden;
                txtInvoice.Visibility = Visibility.Hidden;
                selectItem.IsEnabled = false;
                cmdAdd.IsEnabled = false;
                cmdDeleteItem.IsEnabled = false;
                cmdSave.IsEnabled = false;
                cmdEdit.IsEnabled = false;
                cmdDelete.IsEnabled = false;
            }
            catch (Exception ex)
            {
                throw new Exception(MethodInfo.GetCurrentMethod().DeclaringType.Name + "." + MethodInfo.GetCurrentMethod().Name + " -> " + ex.Message);
            }
        }
        public MainWindow()
		{
			this.InitializeComponent();
            //MAKE SURE TO INCLUDE THIS LINE OR THE APPLICATION WILL NOT CLOSE
            //BECAUSE THE WINDOWS ARE STILL IN MEMORY
            Application.Current.ShutdownMode = ShutdownMode.OnMainWindowClose;

            SQLStatements = new clsSQLStatements();

            selectItem.ItemsSource = SQLStatements.itemsCollection();

        }