Step 1: Click New Project, then select Visual C# on the left, then Windows and then select Windows Forms Application. Name your project "ListboxDemo" and then click OK

Step 2: Create a State class as below
public class States
{
public string ID { get; set; }
public string Name { get; set; }
public string Display
{
get
{
return string.Format("({0}) {1}", ID, Name);
}
}
}
Step 3: Design your form as below

Step 4: Add code to handle your form as below
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ListboxDemo
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
//Add item direct to listbox
private void btnAdd_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtValue.Text))
return;
listState.Items.Add(txtValue.Text);
txtValue.Clear();
txtValue.Focus();
}
private void btnRemove_Click(object sender, EventArgs e)
{
if (listState.Items.Count > 0)
listState.Items.RemoveAt(listState.SelectedIndex);
}
private void listState_SelectedIndexChanged(object sender, EventArgs e)
{
lblValue.Text = listState.Text;
}
//Binding data to listbox
private void btnLoadState_Click(object sender, EventArgs e)
{
List<States> list = new List<States>();
list.Add(new States() { ID = "AL", Name = "Alabama" });
list.Add(new States() { ID = "AZ", Name = "Arizona" });
list.Add(new States() { ID = "CA", Name = "California" });
listState.DataSource = list;
listState.ValueMember = "ID";
//listState.DisplayMember = "Name";
listState.DisplayMember = "Display";
}
}
}
VIDEO TUTORIALS