private void btnClaim_Click(object sender, EventArgs e) { var index = barcodeEntityList.Count - 1; FmClaim fm = new FmClaim(); //DataTable dt = Util.DBQuery(string.Format(@"SELECT SellPrice FROM Barcode WHERE Barcode = '{0}'", UcClaim.barcode)); sellprice = barcodeEntityList2[index].SellPrice.ToString(); Product = barcodeEntityList2[index].Product; SellDate = barcodeEntityList2[index].SellDate; var result = fm.ShowDialog(this); if (result == DialogResult.Yes) { } }