private void onibusToolStripMenuItem_Click(object sender, EventArgs e)
{
ManageBus formBus = new ManageBus(this);
formBus.Visible = true;
this.Enabled = false;
}
private void btnAddBus_Click(object sender, EventArgs e)
{
ManageBus formBus = new ManageBus(this);
formBus.Visible = true;
this.Enabled = false;
}