Nsryjdtyk

I'm having trouble with the logic to fill textboxs with the previous stored data in the List<>. The code should save the fields in a class and then when the user hits the back button, I need to display the last stored item in the list. The same goes for clicking on the next button. I don't know how to fill textboxs with the previous stored data in the List<>. This is a WPF application. Thank you for any help.

public partial class MainWindow : Window

{

    //these lines of code imports the date/time function and the random function 

    DateTime time = DateTime.Now;

    Random rnd = new Random();



    String addresses;

    String cities;

    String states;

    String zipcodes;

    string num = "";



    public List<Order> orderlist = new List<Order>();



    public class Order

    {

        public string city { set; get; }

        public string zipcode { set; get; }

        public string state { set; get; }

        public string orderNum { set; get; }

        public string address { set; get; }

    }



    public MainWindow()

    {

        InitializeComponent();



    }



    private void scanBtn_Click(object sender, RoutedEventArgs e)

    {

        //this displays the current date and time in the arrived at textbox

        arrivedAtTextbox.Text = "" + time;



        //this code generates a random number and converts to a string to be displayed

        int id = rnd.Next(1000);

        num = id.ToString();

        packageIDTextbox.Text = num;



        //these lines of code enables the fields after the scan button was clicked

        addressTextbox.IsEnabled = true;

        cityTextbox.IsEnabled = true;

        zipCodeTextbox.IsEnabled = true;

        stateComboBox.IsEnabled = true;



        //this code sets the focus to the address field

        addressTextbox.Focus();



        addresses = addressTextbox.Text;

        cities = cityTextbox.Text;          

        zipcodes = zipCodeTextbox.Text;

        states = stateComboBox.Text;





    }



    //Add Button

    private void addBtn_Click(object sender, RoutedEventArgs e)

    {

        Order data = new Order();

        data.address = addresses;

        data.city = cities;

        data.zipcode = zipcodes;

        data.state = states;

        data.orderNum = num;



        orderlist.Add(data);



    }

    //Remove Button

    private void Button_Click(object sender, RoutedEventArgs e)

    {



    }



    //Next Button

    private void Button_Click_1(object sender, RoutedEventArgs e)

    {





    }

}