C#

using System;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
using System.Text;
using System.Xml;
namespace Windows21
{
    public class ListView1 : Form
    {
        XmlTextReader reader;
        XmlDocument doc = new XmlDocument();
        ListView listView = new ListView();
        Button button1 = new Button();
        ListBox listBox1 = new ListBox();

        public ListView1()
        {
            //listView.Dock = DockStyle.Fill;
            listView.Location = new Point(250, 250);
            listView.Width = 250;
            listView.Height = 100;
            button1.Visible = true;
            listBox1.Visible = true;
            button1.Text = "button1";
            button1.Location = new Point(100, 100);
            listBox1.Location = new Point(100, 150);
            PopulateListView();
            this.Controls.Add(listView);
            this.Controls.Add(button1);
            this.Controls.Add(listBox1);
            this.ClientSize = new Size(400, 200);
            button1.Click += new EventHandler(button1_Click);
        }

        private void PopulateListView()
        {
            try
            {
                // Set the view to show details.
                listView.View = View.Details;
                // Add columns
listView.Columns.Add("FileName", -2, HorizontalAlignment.Center);
                listView.Columns.Add("Status", -2, HorizontalAlignment.Left);
                  // Add items
                 reader = new XmlTextReader("path.xml");
               while (reader.Read())
                {
                    switch (reader.NodeType)
                    {
                        case XmlNodeType.Text: //Display the text in each element.
                            //   Console.WriteLine(reader.Value);
                            String s1 = reader.Value;
                            String ss = listBox1.SelectedItem.ToString();
                            String sss = ss + s1;
                            object o3 = (object)sss;

                            DirectoryInfo dire = new DirectoryInfo(sss);
                            if (dire.Exists)
                            {
               String[] folder = Directory.GetDirectories(sss);
                                foreach (string foldername in folder)
                                {
              DirectoryInfo di = new DirectoryInfo(foldername);
                                    if (di.Exists)
                                    {
                String[] files = Directory.GetFiles(foldername);
                                        foreach (String filename in files)
                                        {
                                            FileInfo fil2 = new FileInfo(filename);
                           ListViewItem item1 = new ListViewItem();
                                            item1.Text = fil2.Name;
                                            item1.ImageIndex = 1;
                                            item1.Tag = fil2.FullName;
                         item1.SubItems.Add("Programming .NET");
                                            listView.Items.Add(item1);
                                   
                                        }}}}                           
                            break;
                    }}}
           
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }
        }
        private void InitializeComponent()
        {
            this.SuspendLayout();
            this.ClientSize = new System.Drawing.Size(756, 485);
            this.Name = "ListView1";
            this.ResumeLayout(false);    
    }
        private void button1_Click(object sender, EventArgs e)
        {
            //listBox1 lb = (listBox1)sender;
            string[] drives = Environment.GetLogicalDrives();
            // Loop into the string array
            foreach (string strDrive in drives)
            {
                // Add items (drives) to the list
                listBox1.Items.Add(strDrive.ToString());
            }}}}