public IList <SalesOrder.Models.Product> GetProductData()
        {
            string data = _textFileHelper.GetContentTextFile("ProductList.csv");

            var products = new List <Models.Product>();

            string[] productLines = data.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
            foreach (var productLine in productLines)
            {
                string[] productData = productLine.Split(',');

                var product = new Models.Product()
                {
                    ProductCode = productData[0],
                    UnitPrice   = decimal.Parse(productData[1])
                };

                products.Add(product);
            }

            return(products);
        }