private void ImportFromSubscriptionUrls( Dictionary <string, string> subscriptions) { Task.Factory.StartNew(() => { // dict( [url]=>mark ) to list(url,mark) mark maybe null var subsUrl = subscriptions.Select(s => s).ToList(); List <string[]> links = BatchGetLinksFromSubsUrl(subsUrl); servers.ImportLinksBatchMode(links, false); EnableBtnUpdate(); }); }