private void creditosPendientesToolStripMenuItem_Click(object sender, EventArgs e)
{
frmCreditosPendientes frm = new frmCreditosPendientes();
frm.MdiParent = this;
frm.Show();
frm.dataListado.ClearSelection();
}
public frmCreditosPendientes()
{
InitializeComponent();
frmCreditosPendientes.f1 = this;
}