public DataTable Tabla()
        {
            DataTable DAT = new DataTable();

            try
            {
                DAT = N_Empleado.Ver();
                DT_View.ItemsSource = DAT.DefaultView;
            }
            catch (Exception err)
            {
                System.Windows.MessageBox.Show(err.Message + "\n" + err.StackTrace);
                DAT = null;
            }
            return(DAT);
        }