示例#1
0
        static void Main(string[] args)
        {
            Console.Title = "COMP2614 Assignment 04 A00838629";

            string path = @"...\\...\\groceries.csv";

            if (!File.Exists(path))
            {
                Console.WriteLine("File does not exist.");
            }

            if (path == null)
            {
                Console.WriteLine("File Path not found.");
            }

            string[] readLinesArray = File.ReadAllLines(path);

            decimal totalPrice = 0;

            GroceryItemCollection groceryItems = new GroceryItemCollection();

            foreach (string line in readLinesArray)
            {
                string[] splitLine                  = line.Split(',');
                string   description                = GetValueOrEmpty(splitLine, 0);
                string   price                      = GetValueOrEmpty(splitLine, 1);
                string   dateTime                   = GetValueOrEmpty(splitLine, 2);
                decimal  convertedGroceryPrice      = Convert.ToDecimal(price);
                DateTime convertedGroceryExpriation = Convert.ToDateTime(dateTime);
                groceryItems.Add(new GroceryItem {
                    Description = description, Price = convertedGroceryPrice, ExpriationDate = convertedGroceryExpriation
                });
                totalPrice += convertedGroceryPrice;
            }

            Console.WriteLine("Natural Order:");
            Console.WriteLine($"{"Grocery Item",-20} {"Price",20:N2}   {"Expires",-15}");
            Console.WriteLine(new string('-', 60));
            ConsolePrinter.PrintGroceryCollection(groceryItems, "");
            Console.WriteLine(new string('-', 60));
            Console.WriteLine($"{"Total:",-20} {totalPrice,20}");
            Console.WriteLine("\n");

            groceryItems.Sort();

            Console.WriteLine("Sorder Order: [Price Descending]");
            Console.WriteLine($"{"Grocery Item",-20} {"Price",20:N2}   {"Expires",-15}");
            Console.WriteLine(new string('-', 60));
            ConsolePrinter.PrintGroceryCollection(groceryItems, "");
            Console.WriteLine(new string('-', 60));
            Console.WriteLine($"{"Total:",-20} {totalPrice,20}");
        }
        public static void PrintGroceryCollection(GroceryItemCollection groceries, string header)
        {
            foreach (GroceryItem grocery in groceries)
            {
                DateTime dateTimeExpiry = grocery.ExpriationDate;
                string   stringDateTime;
                stringDateTime = Convert.ToString(dateTimeExpiry);

                if (grocery.ExpriationDate == DateTime.MinValue)
                {
                    stringDateTime = "<Never>";
                }
                else
                {
                    stringDateTime = dateTimeExpiry.ToString("ddd") + " " + dateTimeExpiry.ToString("MMM dd, yyyy");
                }

                Console.WriteLine($"{grocery.Description, -20} {grocery.Price, 20:N2}   {stringDateTime,-15}");
            }
        }