public frmConsultaTarjeta()
 {
     InitializeComponent();
     InitializeDataGridView();
     tarjService     = new TarjetaService();
     tipotarjService = new TipoTarjetaService();
 }
        public frmFactura()
        {
            InitializeComponent();
            dgvDetalle.AutoGenerateColumns = false;

            facturaService = new FacturaService();

            tipoFacturaService = new TipoFacturaService();
            clienteService     = new ClienteService();
            productoService    = new ProductoService();
            tarjService        = new TarjetaService();
            tipService         = new TipoTarjetaService();

            listaFacturaDetalle = new BindingList <FacturaDetalle>();
        }