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How to add items to list box and undo the added items

Posted By:satyapriyanayak       Posted Date: August 30, 2013    Points: 40    Category: Visual Studio    URL: http://www.dotnetspark.com  

We will know how to add items to list box and undo the added items.

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;

namespace Listbox_add_undo_items
    public partial class Form1 : Form
        public Form1()

        private void btn_add_Click(object sender, EventArgs e)
            listBox1.SelectedIndex = listBox1.Items.Add(textBox1.Text);

        private void btn_undo_Click(object sender, EventArgs e)
            if (listBox1.Items.Count > 0)
                listBox1.Items.RemoveAt(listBox1.Items.Count - 1);


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