Program to implement all the functionalities of ListBox Control.

Write a program to implement all the functionalities of ListBox Control.

using System;

using System.Windows.Forms;

namespace listbox

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            listBox1.Items.Add(textBox1.Text);

        }

        private void button2_Click(object sender, EventArgs e)

        {

            listBox1.Items.Remove(textBox1.Text);

        }

        private void button3_Click(object sender, EventArgs e)

        {

            listBox1.Items.RemoveAt(Convert.ToInt32(textBox2.Text));

        }

        private void button4_Click(object sender, EventArgs e)

        {

            listBox1.Items.Insert(Convert.ToInt32(textBox2.Text), textBox1.Text);

        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            label1.Text = "";

            foreach (string s in listBox1.SelectedItems)

            {

                if (!label1.Text.Contains(s))

                {

                    label1.Text = label1.Text + "     " + s;

                }

            }

           

        }

        private void button5_Click(object sender, EventArgs e)

        {

            listBox2.Items.Add(listBox1.SelectedItem);

        }

        private void button8_Click(object sender, EventArgs e)

        {

            int i = listBox1.SelectedIndex;

            listBox2.Items[i] = listBox1.SelectedItem;

        }

        private void button6_Click(object sender, EventArgs e)

        {

            listBox1.Items.Add(listBox2.SelectedItem);

        }

        private void button7_Click(object sender, EventArgs e)

        {

            int i = listBox2.SelectedIndex;

            listBox1.Items[i] = listBox2.SelectedItem;

        }

    }

}