private void historialToolStripMenuItem_Click(object sender, EventArgs e)
{
Registros.HistorialForm rhist = new Registros.HistorialForm();
rhist.MdiParent = this;
rhist.Show();
}
private void HistorialtoolStripButton_Click(object sender, EventArgs e)
{
Registros.HistorialForm rhist = new Registros.HistorialForm();
rhist.MdiParent = this;
rhist.Show();
}