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;
}
}
}));
}
