private void frmReporteAutor_Load(object sender, EventArgs e)
        {
            AutorLN aut = new AutorLN();
            DSAutor ds  = new DSAutor();

            try
            {
                prueba1 rpt = new prueba1();
                rpt.SetDataSource(aut.obtenerAutor());
                crystalReportViewer1.ReportSource = rpt;
            }
            catch (Exception men) {
                MessageBox.Show(men.ToString());
            }
        }