private void btnHoaDon_Click(object sender, EventArgs e) { this.Visible = false; HoaDonThanhToan frmHoaDon = new HoaDonThanhToan(); frmHoaDon.ReturnMenu += FrmHoaDon_Menu; frmHoaDon.Show(); }
private void btnXoa_Click(object sender, EventArgs e) { frmmng.Data.SaveDP("dsdp.txt"); frmmng.Data.SaveDSBill("dsbill.txt"); this.Hide(); HoaDonThanhToan frmB = new HoaDonThanhToan(cbxHoten.Text); frmB.ShowDialog(); this.Close(); }