private void porTipoComprobanteToolStripMenuItem_Click(object sender, EventArgs e)
{
frmReporteVentasTipoComprobante frm = new frmReporteVentasTipoComprobante();
frm.MdiParent = this;
frm.Show();
}
public frmReporteVentasTipoComprobante()
{
InitializeComponent();
frmReporteVentasTipoComprobante.f1 = this;
}