private void customersToolStripMenuItem_Click(object sender, EventArgs e) { QuanLyKhachhang quanLyKhachhang = new QuanLyKhachhang(); addForm(quanLyKhachhang); }
private void btnQLKH_Click(object sender, EventArgs e) { QuanLyKhachhang quanLyKhachhang = new QuanLyKhachhang(); quanLyKhachhang.Show(); }