コード例 #1
0
        static void Main(string[] args)
        {
            //Creates a new connection to the Database
            BeverageJKoehlerEntities bevEntities = new BeverageJKoehlerEntities();

            //Create an instance of the UserInterface class
            UserInterface userInterface = new UserInterface();

            //Create an instance of the WineItemCollection class
            IWineCollection wineItemCollection = new WineItemCollection(bevEntities);


            //Display the Welcome Message to the user
            userInterface.DisplayWelcomeGreeting();

            //Display the Menu and get the response. Store the response in the choice integer
            //This is the 'primer' run of displaying and getting.
            int choice = userInterface.DisplayMenuAndGetResponse();

            while (choice != 7)
            {
                switch (choice)
                {
                case 1:
                    //Check the Database Connection.

                    if (bevEntities != null)
                    {
                        //Display Success Message
                        userInterface.DisplayImportSuccess();
                    }
                    else
                    {
                        //Display Fail Message
                        userInterface.DisplayImportError();
                    }
                    break;

                case 2:
                    //Print Entire List Of Items
                    string[] allItems = wineItemCollection.GetPrintStringsForAllItems();
                    if (allItems.Length > 0)
                    {
                        //Display all of the items
                        userInterface.DisplayAllItems(allItems);
                    }
                    else
                    {
                        //Display error message for all items
                        userInterface.DisplayAllItemsError();
                    }
                    break;

                case 3:
                    //Search For An Item
                    string searchQuery     = userInterface.GetSearchQuery();
                    string itemInformation = wineItemCollection.FindById(searchQuery);
                    if (itemInformation != null)
                    {
                        userInterface.DisplayItemFound(itemInformation);
                    }
                    else
                    {
                        userInterface.DisplayItemFoundError();
                    }
                    break;

                case 4:
                    //Add A New Item To The List
                    string[] newItemInformation = userInterface.GetNewItemInformation();
                    if (wineItemCollection.FindById(newItemInformation[0]) == null)
                    {
                        wineItemCollection.AddNewItem(newItemInformation[0], newItemInformation[1], newItemInformation[2], newItemInformation [3],
                                                      newItemInformation[4]);
                        userInterface.DisplayAddWineItemSuccess();
                    }
                    else
                    {
                        userInterface.DisplayItemAlreadyExistsError();
                    }
                    break;

                //Update an existing item in the database
                case 5:
                    string[] updatedItemInformation = userInterface.GetNewItemInformation();
                    if (wineItemCollection.FindById(updatedItemInformation[0]) == null)
                    {
                        userInterface.DisplayItemFoundError();
                    }
                    else
                    {
                        wineItemCollection.UpdateItem(updatedItemInformation[0], updatedItemInformation[1], updatedItemInformation[2],
                                                      updatedItemInformation[3], updatedItemInformation[4]);
                    }
                    break;

                //Remove an existing item from the database
                case 6:
                    string itemToRemove = userInterface.DisplayItemRemovalDialogue();

                    wineItemCollection.RemoveItem(itemToRemove);

                    break;
                }

                //Get the new choice of what to do from the user
                choice = userInterface.DisplayMenuAndGetResponse();
            }
        }