private void TiposDeVehiculosToolStripMenuItem_Click(object sender, EventArgs e) { if (tiposVehiculos == null) { tiposVehiculos = new MantenimientoTiposVehiculos(); tiposVehiculos.MdiParent = this; tiposVehiculos.FormClosed += new FormClosedEventHandler(cerrarTiposVehiculos); tiposVehiculos.Show(); } else { tiposVehiculos.Activate(); } }
private void cerrarTiposVehiculos(object sender, FormClosedEventArgs e) { tiposVehiculos = null; }