public static void QueryCurrentWeather(int zipCode)
{
if (!IsActive)
{
ZipCode zipCodeDb = ZipCode.Get(zipCode);
if (zipCodeDb != null)
{
ZipCodeCity zipCodeCity = ZipCodeCity.Get(zipCodeDb.CityId);
ServerUri = "http://forecast.weather.gov/MapClick.php?lat=" +
zipCodeCity.Latitude + "&lon=" +
zipCodeCity.Longitude + "&site=all&smap=1";
CurrentZipCode = zipCode;
IsActive = true;
CurrentWeather = "";
CurrentTemperature = -1000;
BytesReceived = 0;
DownloadThread = new Thread(DownloadWebFileStart);
DownloadThread.Start();
}
else
{
if (QueryFailed != null)
{
QueryFailed.Invoke(typeof(WeatherHelper), new EventArgs());
}
}
}
}
private static void DownloadWebFileStart()
{
string pageText = "";
HttpWebRequest request = WebRequest.Create(ServerUri) as HttpWebRequest;
if (request == null)
{
return;
}
try
{
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
if (response != null)
{
using (Stream input = response.GetResponseStream())
{
int bytesRead;
byte[] buffer = new byte[BufferSize];
while (input != null && (bytesRead = input.Read(buffer, 0, buffer.Length)) > 0)
{
BytesReceived += bytesRead;
pageText += Encoding.ASCII.GetString(buffer, 0, bytesRead);
}
}
}
request.Abort();
DispatchingWindow.Dispatcher.Invoke((Action)(() =>
{
try
{
ParsePageText(pageText);
if (QueryCompleted != null)
{
QueryCompleted.Invoke(typeof(WeatherHelper), new EventArgs());
}
}
catch
{
if (QueryFailed != null)
{
QueryFailed.Invoke(typeof(WeatherHelper), new EventArgs());
}
}
}));
IsActive = false;
}
catch (WebException)
{
request.Abort();
IsActive = false;
}
}
