How to Async download multiple files using webclient simultaneously?

i want to download multiple file and want to show multiple progress bar for each file download progress.i got a code which can download file at a time but i want to start download many files at a time and also like to show progress bar for each file progress

suppose i have one textbox where i will put url and when i click on download button then download will start and a progress bar will be show for showing that file download progress. the same if i put another url in textbox and click on download button then another file download start and another progress bar will be shown to show that file download progress. i want that each file will be downloading in separate thread means my program will be multi threaded.

the code i have for downloading one file at a time.please guide me what to change in code to achieve my goal. thanks

private Queue _downloadUrls = new Queue(); private void downloadFile(IEnumerable urls) { foreach (var url in urls) { _downloadUrls.Enqueue(url); } // Starts the download btnGetDownload.Text = "Downloading..."; btnGetDownload.Enabled = false; progressBar1.Visible = true; lblFileName.Visible = true; DownloadFile(); } private void DownloadFile() { if (_downloadUrls.Any()) { WebClient client = new WebClient(); client.DownloadProgressChanged += client_DownloadProgressChanged; client.DownloadFileCompleted += client_DownloadFileCompleted; var url = _downloadUrls.Dequeue(); string FileName = url.Substring(url.LastIndexOf("/") + 1, (url.Length - url.LastIndexOf("/") - 1)); client.DownloadFileAsync(new Uri(url), "C:\\Test4\\" + FileName); lblFileName.Text = url; return; } // End of the download btnGetDownload.Text = "Download Complete"; } private void client_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e) { if (e.Error != null) { // handle error scenario throw e.Error; } if (e.Cancelled) { // handle cancelled scenario } DownloadFile(); } void client_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e) { double bytesIn = double.Parse(e.BytesReceived.ToString()); double totalBytes = double.Parse(e.TotalBytesToReceive.ToString()); double percentage = bytesIn / totalBytes * 100; progressBar1.Value = int.Parse(Math.Truncate(percentage).ToString()); }tbhattacharjee