private void toolStripMenuItemHuyMon_Click(object sender, EventArgs e) { try { if (dataGridViewXListMonAn.SelectedRows[0].Cells[1].Value.ToString() != null) { DialogResult dialogResult = MessageBox.Show("Bạn có chắc chắn muốn xóa", "Xóa", MessageBoxButtons.YesNo); if (dialogResult == DialogResult.Yes) { int MaChiTiet = Convert.ToInt32(dataGridViewXListMonAn.SelectedRows[0].Cells[1].Value.ToString()); int SoLuong = Convert.ToInt32(dataGridViewXListMonAn.SelectedRows[0].Cells[4].Value.ToString()); BanHang.Model.Update update = new BanHang.Model.Update(); HoaDon.model.Load load = new HoaDon.model.Load(); DataTable dt = load.LoadChiTietHoaDonTheoMaChiTietHoaDon(MaChiTiet); int MaMonAn = Convert.ToInt32(dt.Rows[0][1].ToString()); update.TraHangTrongKho(MaMonAn, SoLuong); BanHang.Model.Delete delete = new BanHang.Model.Delete(); delete.DeleteMonAn(MaChiTiet); LoadChiTietHoaDon(MaHoaDon); LoadSoLuongSanPham(); loadThucDon(); } } } catch (Exception) { } }