How to Async download multiple files using webclient simultaneously?

[Mou_kolkata]

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<string> _downloadUrls = new Queue<string>();

private void downloadFile(IEnumerable<string> 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());
}

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