private void btnVehicleMaintenance_Click(object sender, EventArgs e) { if (frmVehicle == null) { frmVehicle = new VehicleForm(DM, this); } frmVehicle.ShowDialog(); }
private void btnVehicle_Click(object sender, EventArgs e) { if (frmVehicle == null) { frmVehicle = new VehicleForm(DM, this); } frmVehicle.ShowDialog(); }