Drag and drop ListBox from toolbox on the window Form.

Code:

using System;
using System.Text;
using System.Windows.Forms;
  
namespace WindowsFormsApplication1
{
     public partial class frmListBox : Form
    {
         public frmListBox()
         {
            InitializeComponent();
         }
         private void frmListBoLoad(object sender, EventArgs e)
         {
            // Add item in ListBox
            listBox1.Items.Add("C#");
            listBox1.Items.Add("J#");
            listBox1.Items.Add("VB");
            listBox1.Items.Add("Java");
         }
     private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
         {
            // selected value will show in Label
     label3.Text ="Selected Language is "+listBox1.SelectedItem.ToString();
         }
    }
}

Run The Project

 

 

When you select given option then SelectedIndexChanged event will fire and

selected Item will show in the Label.

 

ListBox Control Properties

Sorted: ListBox can be sorted through ListBox sorted Property

Example:

private void frmListBoLoad(object sender, EventArgs e)
{         
    //sorted ListBox Item
    listBox1.Sorted = true;
}

ListBox Item is sorted.

BackColor:    ListBox Color can be changed through ListBox BackColor Property.

Example:

private void frmListBoLoad(object sender, EventArgs e)
{
       //change ListBox BackColor
       listBox1.BackColor = Color.CadetBlue;
}

ListBox BackColor will be change when Application Run.

ForeColor:   ListBox Fore color is changed through ListBox ForeColor Property.

Example:

private void frmListBoLoad(object sender, EventArgs e)
{
      //change ListBox ForeColor
       listBox1.ForeColor = Color.Red;
}