private void hóaĐơnNhậpToolStripMenuItem_Click(object sender, EventArgs e) { HoaDonNhap frmHDN = new HoaDonNhap(this.userLogin); this.Hide(); frmHDN.Show(); }
private void btnQuayLai_Click(object sender, EventArgs e) { HoaDonNhap hdn = new HoaDonNhap(this.userLogin); hdn.Show(); this.Hide(); }