public static string toStringCSV(Orders orders)
{
string row = $"{orders.OrderNumber},{orders.CustomerName},{orders.State},{orders.TaxRate},{orders.ProductType},{orders.Area},{orders.CostPerSquareFoot},{orders.LaborCostPerSquareFoot},{orders.MaterialCost},{orders.LaborCost},{orders.Tax},{orders.Total}";
return(row);
}