private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
string sUrlToReadFileFrom = Url;
var url = new Uri(sUrlToReadFileFrom);
var request = WebRequest.Create(url);
var response = request.GetResponse();
// gets the size of the file in bytes
Int64 iSize = response.ContentLength;
// keeps track of the total bytes downloaded so we can update the progress bar
int iRunningByteTotal = 0;
// use the webclient object to download the file
using (Stream streamRemote = response.GetResponseStream())
{
if (streamRemote != null)
{
streamRemote.ReadTimeout = 8000;
// loop the stream and get the file into the byte buffer
var byteBuffer = new byte[iSize];
int iByteSize;
while ((iByteSize = streamRemote.Read(byteBuffer, iRunningByteTotal, byteBuffer.Length - iRunningByteTotal)) > 0 && !backgroundWorker1.CancellationPending)
{
iRunningByteTotal += iByteSize;
// calculate the progress out of a base "100"
var dIndex = (double) (iRunningByteTotal);
var dTotal = (double) byteBuffer.Length;
var dProgressPercentage = (dIndex/dTotal);
var iProgressPercentage = (int) (dProgressPercentage*100);
// update the progress bar
backgroundWorker1.ReportProgress(iProgressPercentage);
int total = iRunningByteTotal;
UISync.Execute(() => lblProgress.Text = total + " / " + iSize);
}
if (!backgroundWorker1.CancellationPending)
{
if (SaveLocation.EndsWith(".xml"))
{
var ms = new MemoryStream(byteBuffer);
var doc = new XmlDocument();
try
{
doc.Load(ms);
doc.Save(SaveLocation);
success = true;
}
catch (Exception ex)
{
success = false;
Logger.LogExceptionToFile(ex);
DialogResult = DialogResult.Cancel;
aborting = true;
}
ms.Dispose();
}
}
else
{
Logger.LogMessageToFile("Update cancelled");
}
}
else
{
Logger.LogErrorToFile("Response stream from " + Url + " failed");
}
}
response.Close();
}
