C#

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;
using System.IO;
using System.Net;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnDownload_Click(object sender, EventArgs e)
        {

            string p1 = @"\";
            string p2 = TBSaveTo.Text;
            string p3 = TBSaveAs.Text;
            

            listView1.Items.Clear();
            label1.Visible = false;

            HttpWebRequest request = null;
            HttpWebResponse response = null;
            WebClient wc = new WebClient();

            string ret = "";

            for (int i = 2000; i < 2312; i++)
            {
                string sFiles = string.Format("http://www.svenskaspel.se/includes/xmlelements/XMLresultat.asp?produktid=30&omgang={0}", +i);

                listView1.Items.Add(new ListViewItem(p2 + p1 + "omgang=" + i + p3));


                {

                    try
                    {
                        // Create a request to the files we are downloading
                        request = (HttpWebRequest)WebRequest.Create(sFiles.Trim());
                        request.Method = "GET";
                        request.ContentType = "application/x-www-form-urlencoded";
                        request.Timeout = 15000;
                        // Retrieve the response from the server
                        response = (HttpWebResponse)request.GetResponse();
                        ret = new StreamReader(response.GetResponseStream(),
                                                      Encoding.Default).ReadToEnd();



                        wc.DownloadProgressChanged += new DownloadProgressChangedEventHandler(wc_DownloadProgressChanged);
                        //Save Files To Folder
                        wc.DownloadFileAsync(new Uri(sFiles.Trim()), String.Format(p2 + p1 + "omgang=" + i + p3, Path.GetExtension(sFiles)));
                        wc.DownloadFileCompleted += new System.ComponentModel.AsyncCompletedEventHandler(wc_DownloadFileCompleted);
                        response.Close();

                    }
                    catch { }

                    finally
                    {
                        if (response != null)
                        {
                            response.Close();


                        }

                    }

                }
            }
        }




        private void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {


            this.label1.Visible = false;
        }

        private void wc_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
        {
            this.label1.Visible = true;
        }

        private void btnBrowse_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
            {
                TBSaveTo.Text = folderBrowserDialog1.SelectedPath;
            }
        }
    }
}

TreeView tvFolders;         // The TreeView object
TreeViewItem bufferFolder;  // A buffer object to store the copied TreeViewItem in

private void Copy(object sender, RoutedEventArgs e)
{
    if (tvFolders.SelectedItem == null)
        return;

    bufferFolder = tvFolders.SelectedItem as TreeViewItem;
}

private void Paste(Object sender, RoutedEventArgs e)
{
    if (bufferFolder == null || tvFolders.SelectedItem == null)
        return;

    TreeViewItem selectedFolder = tvFolders.SelectedItem as TreeViewItem;
    selectedFolder.Items.Add(bufferFolder);
}