c# - 允许用户将数据添加到列表中

Question

您好，我正在尝试使用列表来构建联系人管理器程序来存储和显示数据。我需要查看显示可用联系人摘要的报告，然后有一个菜单允许用户与程序进行交互。我有一种创建数据列表的方法，但我需要更改该方法以允许用户创建一个新联系人，其中将包含他们的名字和姓氏、电话号码、电子邮件地址和类型。但我不确定该怎么做。

如有任何指导，我们将不胜感激。

static void Main(string[] args)
    {


        //Declare the list

        ArrayList list = new ArrayList();           

        Console.WriteLine("Contact List");
        // display the menu to the user
        Console.WriteLine("Enter option or M for menu:");
        //Main Driver
        char menuItem;
        menuItem = GetMenuItem();
        while (menuItem != 'X')
        {

            ProcessMenuItem(menuItem);
            menuItem = GetMenuItem();

        }
        Console.WriteLine("\nThank you, goodbye");
        Console.ReadLine();
    }
    static char GetMenuItem()
    {
        char menuItem;
        DisplayMenu();
        menuItem = IOConsole.GetChar((Console.ReadLine()));

        while (menuItem != 'C'
            && menuItem != 'L' && menuItem != 'X' && menuItem != 'R' && menuItem != 'U' && menuItem != 'D')
        {
            Console.WriteLine("\nError - Invalid menu item");
            DisplayMenu();
            //menuItem = IOConsole.GetChar((Console.ReadLine()));
        }
        return menuItem;
    }

    static void DisplayMenu()
    {
       Console.WriteLine("C-> Create Contacts");
       Console.WriteLine("R-> Remove Contacts");
       Console.WriteLine("U-> Update Contacts");
       Console.WriteLine("D -> Load data from file");
       Console.WriteLine("S-> Save data to file");
       Console.WriteLine("L-> View sorted by last name");
       Console.WriteLine("F-> View sorted by first name");
       Console.WriteLine("P-> View by partial name search");
       Console.WriteLine("T-> View by contact type");
       Console.WriteLine("Q-> Quit");
    }

    //Routes to the appropriate process routine based on the user menu choice
    static void ProcessMenuItem(Char menuItem)
    {
        switch (menuItem)
        {
            case 'C':
                createContact();
                break;
            case 'R':
                removeContact();
                break;
            case 'U':
                updateContact();
                break;
            case 'D':
                LoadToFile();
                break;
            case 'S':
                saveToFile();
                break;

            case 'L':
                sortByLastName();
                break;
            case 'F':
                sortByFirstName();
                   break;
            case 'P':

                   break;
            case 'T':

                   break;
            case 'Q':

                   break;

        }                   
    }

     public static void createContact()
    {
        Contact c1      = new Contact();
        //c1.Number       = 1; //Id?
        c1.GetLastName     = "Doe";
        c1.GetFirstName    = "John";
        c1.GetEmailAddress = "johndoe@email.com";
        c1.GetPhoneNumber  = "12345678";
        c1.ContactTypes         = ContactTypesEnum.Friend;

        //Create more contacts...

        //Add all contacts here
        ContactCollection contactList = new ContactCollection();
        contactList.Add(c1);

        //Loop through list
        foreach( Contact c in contactList)
        {
            Console.WriteLine(c.GetFirstName); //Do something with fields
        }

        Console.ReadLine();
    }

Answer 1

向用户询问每个字段

 public static void createContact()
        {
            Contact c1 = new Contact();
            Console.WriteLine("GetFirstName");
            c1.GetFirstName = Console.ReadLine();
            Console.WriteLine("GetLastName");
            c1.GetLastName = Console.ReadLine();
            Console.WriteLine("GetEmailAddress");
            c1.GetEmailAddress = Console.ReadLine();
            Console.WriteLine("GetPhoneNumber");
            c1.GetPhoneNumber = Console.ReadLine();
            Console.WriteLine("ContactTypes");
            c1.ContactTypes = Console.ReadLine();

            //Create more contacts...

            //Add all contacts here
            ContactCollection contactList = new ContactCollection();
            contactList.Add(c1);

            //Loop through list
            foreach (Contact c in contactList)
            {
                Console.WriteLine(c.GetFirstName); //Do something with fields
                // Save using this foreach loop to some collection where you are storing contacts or may be directly save the list.
            }

            Console.ReadLine();
        }

但我怀疑你怎么能把所有联系人都放在那个列表中，因为每次使用这种方法时，它都会创建一个情感列表。