private string DownloadQueryResults(string sourceUrl)
{
if (!string.IsNullOrEmpty(sourceUrl))
{
string tempZipDir = Path.Combine(Path.GetTempPath(), Path.GetFileNameWithoutExtension(Path.GetRandomFileName()));
string tempZipFile = tempZipDir + ".zip";
WebClient webClient = null;
bool canceled = false;
try
{
webClient = new WebClient();
bool downloadCompleted = false;
webClient.DownloadProgressChanged +=
delegate(object sender, DownloadProgressChangedEventArgs e)
{
string msg;
if (IsCancelRequested())
{
OnCancelRequested();
if (!canceled)
{
webClient.CancelAsync();
}
canceled = true;
return;
}
if (e.BytesReceived < 1000 * 1024)
{
msg = string.Format("Retrieving images ({0:0.00}KB)", ((float)e.BytesReceived) / 1024);
}
else
{
msg = string.Format("Retrieving images ({0:0.00}MB)", ((float)e.BytesReceived) / 1000 / 1024);
}
OnProgressUpdated(msg);
//OnResultUpdated(Result);
};
webClient.DownloadFileCompleted +=
delegate(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
downloadCompleted = true;
};
webClient.DownloadFileAsync(new Uri(sourceUrl), tempZipFile);
//webClient.DownloadFile(sourceUrl, tempZipFile);
while (!downloadCompleted)
{
System.Threading.Thread.Sleep(500);
}
if (IsCancelRequested())
{
OnCancelRequested();
canceled = true;
}
if (!canceled)
{
OnProgressUpdated("Processing received images");
//Result.ProgressMessage = "Processing received images";
//OnResultUpdated(Result);
try
{
ZipUtil.UnZipFiles(tempZipFile, tempZipDir, "", false, true);
File.Delete(tempZipFile);
}
catch (Exception ex)
{
Platform.Log(LogLevel.Error, "Error processing received images", ex);
OnError("Error processing received images");
return(null);
}
return(tempZipDir);
}
}
finally
{
if (webClient != null)
{
webClient.Dispose();
}
}
}
return(null);
}
private string DownloadQueryResults(string sourceUrl, IBackgroundTaskContext context)
{
if (!string.IsNullOrEmpty(sourceUrl))
{
string tempZipDir = System.IO.Path.Combine(System.IO.Path.GetTempPath(),
System.IO.Path.GetFileNameWithoutExtension(System.IO.Path.GetRandomFileName()));
string tempZipFile = tempZipDir + ".zip";
WebClient webClient = null;
bool canceled = false;
try
{
webClient = new WebClient();
bool downloadCompleted = false;
webClient.DownloadProgressChanged +=
delegate(object sender, DownloadProgressChangedEventArgs e)
{
if (context != null)
{
string progressMsg;
if (e.BytesReceived < 1000 * 1024)
{
progressMsg = string.Format("Retrieving images ({0:0.00}KB)", ((float)e.BytesReceived) / 1024);
}
else
{
progressMsg = string.Format("Retrieving images ({0:0.00}MB)", ((float)e.BytesReceived) / 1000 / 1024);
}
BackgroundTaskProgress progress = new BackgroundTaskProgress(1, 3, progressMsg);
context.ReportProgress(progress);
if (context.CancelRequested)
{
if (!canceled)
{
webClient.CancelAsync();
}
context.Cancel();
canceled = true;
}
}
};
webClient.DownloadFileCompleted +=
delegate(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
downloadCompleted = true;
};
webClient.DownloadFileAsync(new Uri(sourceUrl), tempZipFile);
//webClient.DownloadFile(sourceUrl, tempZipFile);
while (!downloadCompleted)
{
System.Threading.Thread.Sleep(500);
}
if (!canceled)
{
if (context != null)
{
BackgroundTaskProgress progress = new BackgroundTaskProgress(1, 3, "Processing received images");
context.ReportProgress(progress);
if (context.CancelRequested)
{
context.Cancel();
canceled = true;
}
}
ZipUtil.UnZipFiles(tempZipFile, tempZipDir, "", false, true);
try
{
File.Delete(tempZipFile);
}
catch (Exception)
{
}
return(tempZipDir);
}
}
finally
{
if (webClient != null)
{
webClient.Dispose();
}
}
}
return(null);
}