private void thốngKêToolStripMenuItem_Click(object sender, EventArgs e)
{
frmThongKe qlhd = new frmThongKe(name, id);
qlhd.Show();
this.Dispose();
}
private void button5_Click(object sender, EventArgs e)
{
frmThongKe qlhd = new frmThongKe(name, id);
qlhd.Show();
this.Dispose();
}