private async void Download_Click(object sender, RoutedEventArgs e)
{
try
{
rowCount++;
var cancelButtonCreator = new CancelButtonCreator();
cancelButtonCreator.RowCount = rowCount;
var newCancelButton = cancelButtonCreator.CreateButton();
var progressBarCreator = new ProgressBarCreator();
progressBarCreator.RowCount = rowCount;
progressBarCreator.CreateProgressBar();
var currentProgressBar = progressBarCreator.CreateProgressBar();
Bars.Children.Add(currentProgressBar);
Buttons.Children.Add(newCancelButton);
var downloadObjectCreator = new DownloadObjectCreator();
downloadObjectCreator.Url = Link.Text;
downloadObjectCreator.ProgressBar = new Progress <int>();
await Downloader.DownloadFile(downloadObjectCreator, currentProgressBar, cancelButtonCreator.CancellationTokenSource);
}
catch (Exception exception)
{
MessageBox.Show(exception.ToString());
}
}
public static async Task DownloadFile(DownloadObjectCreator downloadObjectCreator, ProgressBar progressBar, CancellationTokenSource token)
{
try
{
using (var client = new HttpClient())
using (var response = await client.GetAsync(downloadObjectCreator.Url, token.Token))
using (var content = response.Content)
using (var outputStream = new FileStream(downloadObjectCreator.GetDestinationPath(), FileMode.OpenOrCreate, FileAccess.Write))
{
var buffer = new byte[1024];
var stream = await content.ReadAsStreamAsync();
do
{
if (token.IsCancellationRequested)
{
break;
}
var read = await stream.ReadAsync(buffer, 0, buffer.Length);
await Task.Delay(200);
progressBar.Value += Math.Abs((double)read / stream.Length * 100);
downloadObjectCreator.ProgressBar.Report((int)progressBar.Value);
await outputStream.WriteAsync(buffer, 0, read);
} while (stream.Length > 0);
}
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
}
