private void Button_Click_2(object sender, RoutedEventArgs e) {//WebClient client = new WebClient(); //client.DownloadFile( // "https://www.bankier.pl/inwestowanie/profile/quote.html?symbol=WIG", // "file.html"); //client.DownloadFile( //"http://bossa.pl/pub/metastock/mstock/mstall.zip", //"file2.zip"); var downloadService = singleton.GetDownloadServiceSingleInstance(); downloadService.DownloadFiles(); //Download d = new DownloadFromBossa(new ErrorMessageToFile()); //d.DownloadFile(); //download }