private void lISTADEPRECIOSToolStripMenuItem_Click(object sender, EventArgs e)
{
frmDM_ListaPrecio o = new frmDM_ListaPrecio(null);
o.MdiParent = this;
o.Show();
}
private void btnGoListaPrecios_Click(object sender, EventArgs e)
{
eLISTA_PRECIO o = new eLISTA_PRECIO();
o.LPR_codigo = this.cmbListaPrecio.SelectedValue != null?this.cmbListaPrecio.SelectedValue.ToString() : "";
frmDM_ListaPrecio o2 = new frmDM_ListaPrecio(o);
o2.MdiParent = this.MdiParent;
o2.Show();
}