private void btnNangLuong_Click(object sender, EventArgs e)
{
frmLuong l = new frmLuong();
l.Show();
this.Hide();
}
private void menuLuong_Click(object sender, EventArgs e)
{
this.Hide();
frmLuong l = new frmLuong();
l.ShowDialog();
}
private void ToolStripMenuItemQuanLyNangLuong_Click(object sender, EventArgs e)
{
frmLuong l = new frmLuong();
l.Show();
this.Hide();
}