public void combine(string newTable, string sectionID, string InvoiceNumOld)
{
getGui.DeleteInvoiceOnhold(StaticClass.storeId, InvoiceNumOld);
DataTable oldInvoiceItemized = getGui.GetInvoiceItemized(StaticClass.storeId, InvoiceNumOld);
for (int i = 0; i < oldInvoiceItemized.Rows.Count; i++)
{
oldInvoiceItemized.Rows[i]["Invoice_Number"] = invoiceNum;
oldInvoiceItemized.Rows[i]["LineNum"] = myCash1.listInvoiceItem.Rows.Count + 1;
myCash1.listInvoiceItem.Rows.Add(oldInvoiceItemized.Rows[i].ItemArray);
decimal price = Convert.ToDecimal(oldInvoiceItemized.Rows[i]["Quantity"]) * Convert.ToDecimal(oldInvoiceItemized.Rows[i]["PricePer"]) * (1 - Convert.ToDecimal(oldInvoiceItemized.Rows[i]["LineDisc"]));
myCash1.addRow(">" + oldInvoiceItemized.Rows[i]["DiffItemName"].ToString(), String.Format("{0:0.##}", oldInvoiceItemized.Rows[i]["Quantity"]), String.Format("{0:0,0}", price));
}
UpdateInfo();
getGui.UpdateCombine(StaticClass.storeId, InvoiceNumOld, invoiceNum);
numOfItemSended = myCash1.listInvoiceItem.Rows.Count;
}