Question

I have been working with a c# tutorial for beginners to create an address book. I followed the instructions, and I have encountered two problems.

1. When I select the properties of the Listview box the SelectedIndexChanged event is missing. I have restarted and refreshed the program several times. I have wrote directly to the file, and it is still not present.

2. When selecting a contact from the list, the text boxes do not reflect the selection. I suspect that this is related to the absence of the SelectedIndexChanged event in the ui. This persisted even when I set SelectedIndexChanged event in code.

All help would be greatly appreciated. My code is below

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Web;


namespace AddressBook
{
    public partial class AddressBook : Form
    {
        public AddressBook()
        {
            InitializeComponent();
        }

        List<Person> people = new List<Person>();

        private void AddressBook_Load(object sender, EventArgs e)
        {
            string path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            if (!Directory.Exists(path + "\\Address Book - Joe"))
                Directory.CreateDirectory(path + "\\Address Book - Joe");
            if (!File.Exists(path + "\\Address Book - Joe\\settings.xml"))
                File.Create((path + "\\Address Book - Joe\\settings.xml"));
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            Person p = new Person();
            p.FirstName = txtFName.Text;
            p.Address = txtAddress.Text;
            p.City = txtCity.Text;
            p.State = comboState.Text;
            p.ZipCode = txtZip.Text;
            p.Email = txtEmail.Text;
            p.PhoneNumber = txtPhone.Text;
            p.Additional = rtxtAdd.Text;
            people.Add(p);
            listView1.Items.Add(p.FirstName);
            txtFName.Text = "";
            txtAddress.Text = "";
            txtCity.Text = "";
            comboState.Text = "";
            txtZip.Text = "";
            txtEmail.Text = "";
            txtPhone.Text = "";
            rtxtAdd.Text = "";

        }

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            txtFName.Text = people[listView1.SelectedItems[0].Index].FirstName;
            txtAddress.Text = people[listView1.SelectedItems[0].Index].Address;
            txtCity.Text = people[listView1.SelectedItems[0].Index].City;
            comboState.Text = people[listView1.SelectedItems[0].Index].State;
            txtZip.Text = people[listView1.SelectedItems[0].Index].ZipCode;
            txtEmail.Text = people[listView1.SelectedItems[0].Index].Email;
            txtPhone.Text = people[listView1.SelectedItems[0].Index].PhoneNumber;
            txtZip.Text = people[listView1.SelectedItems[0].Index].ZipCode;
            rtxtAdd.Text = people[listView1.SelectedItems[0].Index].Additional;

        }

        private void txtFName_TextChanged(object sender, EventArgs e)
        {

        }
    }

    public class Person
    {
        public string FirstName { get; set; }
        public string Address { get; set; }
        public string City { get; set; }
        public string State { get; set; }
        public string ZipCode { get; set; }
        public string PhoneNumber { get; set; }
        public string Email { get; set; }
        public string Additional { get; set; }
    }
}

Answer 1

You need to click the lightning-bolt icon in the Properties window to go to the Events tab.
There, you will see the SelectedIndexChanged event (assuming you selected the right control.

You need to bind your handler to that event in order for your code to run.