private void MySearchCallbackTimeout(object state, bool timedOut)
{
// Create an EventHandler delegate.
UpdateSearchButtonHandler updateSearch = new UpdateSearchButtonHandler(UpdateSearchButtonEvent);
// Invoke the delegate on the UI thread.
this.Invoke(updateSearch, new object[] { new BoolArgs(true) });
if (timedOut)
{
RequestState reqState = (RequestState)state;
if (reqState != null)
{
reqState.Request.Abort();
reqState.Request = null;
}
MessageBox.Show("Request timed out.", "Connection Error", MessageBoxButtons.OK);
toolStripStatusLabel1.Text = "Search failed.";
searchButton.Enabled = true;
if (currentResultPage < totalResultPages)
{
moreButton.Show();
}
}
}
private void MySearchCallback(IAsyncResult result)
{
// Create an EventHandler delegate.
UpdateSearchButtonHandler updateSearch = new UpdateSearchButtonHandler(UpdateSearchButtonEvent);
// Invoke the delegate on the UI thread.
this.Invoke(updateSearch, new object[] { new BoolArgs(true) });
RequestState rs = (RequestState)result.AsyncState;
try {
// Get the WebRequest from RequestState.
WebRequest req = rs.Request;
// Call EndGetResponse, which produces the WebResponse object
// that came from the request issued above.
WebResponse resp = req.EndGetResponse(result);
// Start reading data from the response stream.
System.IO.Stream responseStream = resp.GetResponseStream();
// Store the response stream in RequestState to read
// the stream asynchronously.
rs.ResponseStream = responseStream;
xmlReader = new System.Xml.XmlTextReader(responseStream);
xmlDoc = new System.Xml.XmlDocument();
xmlDoc.Load(xmlReader);
xmlReader.Close();
resp.Close();
req = null;
} catch (WebException we) {
rs.Request.Abort();
rs.Request = null;
toolStripStatusLabel1.Text = "Search failed.";
MessageBox.Show(we.Message, "Connection Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (currentResultPage < totalResultPages)
{
moreButton.Show();
}
return;
}
int nResults = Convert.ToInt32(xmlDoc.GetElementsByTagName("numResults")[0].InnerText);
if (nResults > 0)
{
totalResultPages = nResults / 20 + 1;
toolStripStatusLabel1.Text = "Items found: " + nResults;
toolStripStatusLabel2.Text = "Showing page " + currentResultPage.ToString() + " of " + totalResultPages.ToString();
}
else
{
MessageBox.Show("Your query didn't return any results from Infoseek.\nTry some other search term or regular Infoseek\nwildcards like '*', '?', '^'", "No match", MessageBoxButtons.OK, MessageBoxIcon.Information);
toolStripStatusLabel1.Text = "Ready";
toolStripStatusLabel2.Text = "";
return;
}
System.Xml.XmlNodeList memberNodes = xmlDoc.SelectNodes("//result");
foreach (System.Xml.XmlNode node in memberNodes)
{
InfoseekResult ir = new InfoseekResult();
ProgramTitle progTitle = new ProgramTitle();
ir.InfoseekID = node.SelectSingleNode("id").InnerText;
ir.ProgramName = node.SelectSingleNode("title").InnerText;
ir.Year = node.SelectSingleNode("year").InnerText;
ir.Publisher = node.SelectSingleNode("publisher").InnerText;
ir.ProgramType = node.SelectSingleNode("type").InnerText;
ir.Language = node.SelectSingleNode("language").InnerText;
ir.Score = node.SelectSingleNode("score").InnerText;
ir.PicInlayURL = node.SelectSingleNode("picInlay").InnerText;
infoList.Add(ir);
progTitle.Title = ir.ProgramName;
// ProgramTitleList.Add(progTitle);
AddItemToListBox(infoListBox, infoList.Count - 1, ir.ProgramName,
ir.PicInlayURL, ir.Publisher, ir.ProgramType,
ir.Year, ir.Language, ir.Score);
}
}
