private void AddToListBoxButton_Click(object sender, EventArgs e) { string input = AddToURIListBoxTextBox.Text; if (input.Length < 3) { return; } if (Uri.IsWellFormedUriString(input, UriKind.Absolute)) { Uri convertedInput = new Uri(input); URIItem item = new URIItem(convertedInput); listOfURIs.Add(item); URIListBox.Items.Add(input); } else { ConvertInputLabelToError(); } AddToURIListBoxTextBox.Clear(); }
private static Task <string> RequestItem(URIItem item, CancellationToken cancelToken) { cancelToken.ThrowIfCancellationRequested(); return(Task.Run(() => { // Create a new WebRequest Object to the mentioned URL. WebRequest req = WebRequest.Create(item.URI); // Assign the response object of 'WebRequest' to a 'WebResponse' variable. // And get the stream containing content returned by the server. try { using (WebResponse resp = req.GetResponse()) using (Stream streamResp = resp.GetResponseStream()) using (StreamReader reader = new StreamReader(streamResp)) // Read and return return reader.ReadToEnd(); } catch (Exception e) { if (e is OperationCanceledException) { return "Operation cancelled."; } else { return e.Message; } } })); }