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