public void DownloadItemsCompleted(object sender,
DownloadCompletedEventArgs e)
{
try
{
ItemCache.SetCurrentSchedule(e.schedule);
// success
Debug.WriteLine("++++!!! items downloaded: " + e.schedule.Items.Aggregate("", (s, i) => s + i.Number + ", "));
// update fields (and GUI)
UpdateItemFields();
}
catch (Exception ex)
{
// failure
Debug.WriteLine("Item download did not succeed. There may have been a problem with the data received");
}
}
// this gets called by the updater thread when the operation is completed
public void _DownloadCompleted(IAsyncResult result)
{
DownloadCompletedEventArgs e = new DownloadCompletedEventArgs();
try
{
HttpWebResponse response = (HttpWebResponse)((HttpWebRequest)result.AsyncState).EndGetResponse(result);
string data = new StreamReader(response.GetResponseStream()).ReadToEnd();
// parse out the json into a string of xml and add to the event args
try
{
Debug.WriteLine(data.Length + " characters received from API");
e.schedule = JsonConvert.DeserializeObject <Schedule>(data);
// fire the DownloadCompleted event, in the UI thread
if (Application.Current != null)
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
Debug.WriteLine("_DownloadCompleted: firing event!");
DownloadCompleted(this, e);
}));
}
}
catch (Exception ex)
{
Debug.WriteLine("Problem parsing item API result");
throw ex;
}
}
catch
{
Debug.WriteLine("item download failed");
}
}