//Parallel list to store prices along with their names private void Button_Click(object sender, RoutedEventArgs e) { slipNumber++; products prod = new products(); DataTable tbl = new DataTable(); double totalAmount = 0.0; if (BarCode.Text.Equals("") || BarCode.Text == null) { MessageBox.Show("Enter the barcode you want to Scan"); } else { tbl = data.getThatProduct(long.Parse(BarCode.Text)); if (tbl.Rows.Count > 0) { DataColumn c_column = new DataColumn("Quantity"); if (count < 1) { table = data.getDt(); count++; } DataRow row = data.getProduct(long.Parse(BarCode.Text)); for (int i = 0; i < table.Rows.Count; i++) { if (long.Parse(BarCode.Text) == long.Parse(table.Rows[i]["Barcode"].ToString())) { table.Rows[i]["Quantity"] = Int32.Parse(table.Rows[i]["Quantity"].ToString()) + 1; //dcr += int.Parse(table.Rows[i]["Quantity"].ToString()); incr = Double.Parse(table.Rows[i]["Price"].ToString()); table.Rows[i]["Price"] = Double.Parse(table.Rows[i]["Price"].ToString()) + Double.Parse(row["Price"].ToString()); for (int a = 0; a < prodName.Count; a++) { if (prodName[a].ToString().Equals(row["ProductName"].ToString())) { amt[a] = Double.Parse(table.Rows[i]["Price"].ToString()); } } amt.Add(Double.Parse(table.Rows[i]["Price"].ToString())); prodName.Add(String.Format(row["ProductName"].ToString())); time.Add(DateTime.Now); slip.Add( "----------------------------------- \n" + "Product Name : " + String.Format(row["ProductName"].ToString()) + " \n " + "Day : " + tiime + " \n" + "Price : " + Double.Parse(table.Rows[i]["Price"].ToString()) ); sameProduct = true; } } if (!sameProduct) { table.Rows.Add(row); amt.Add(Double.Parse(row["Price"].ToString())); prodName.Add(String.Format(row["ProductName"].ToString())); time.Add(DateTime.Now); slip.Add( "----------------------------------- \n" + "Product Name : " + String.Format(row["ProductName"].ToString()) + " \n " + "Day : " + tiime + " \n" + "Price : " + Double.Parse(row["Price"].ToString()) ); } //totalLabel.Content = "R "+totalAmount; invoiceGrid.ItemsSource = table.DefaultView; sameProduct = false; } else if (tbl.Rows.Count < 0) { MessageBox.Show("Entered Bar Code does not exist"); } } }