private void tSMTonGiao_Click(object sender, EventArgs e)
{
if (m_TonGiao == null || m_TonGiao.IsDisposed)
{
m_TonGiao = new frmTonGiao();
m_TonGiao.MdiParent = frmMain.ActiveForm;
m_TonGiao.Show();
}
else
{
m_TonGiao.Activate();
}
}
private void cmdThemTonGiao_Click(object sender, EventArgs e)
{
frmTonGiao m_TonGiao = new frmTonGiao();
m_TonGiao.ShowDialog();
}