private void btn_xoaspn_Click(object sender, EventArgs e) { try { SanPhamDTO sp = new SanPhamDTO(); txtMSP.Text = dgvChitietPN.CurrentRow.Cells[1].Value.ToString(); sp.ma_sp = txtMSP.Text; PhieuNhapDTO pnm = new PhieuNhapDTO(); pnm.ma_phieu_nhap = txtMaPN.Text; PhieuNhapBUS.delete_sppn(sp, pnm); load_data(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }