protected static void HttpDownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
NetworkDownloadInfo dlInfo = (NetworkDownloadInfo)e.UserState;
dlInfo.progress = 1.0;
dlInfo.error = e.Error;
dlInfo.cancelled = e.Cancelled;
dlInfo.destFileMD5 = MD5(dlInfo.destFilePath);
if (e.Error != null)
{
Console.WriteLine("Error: " + e.Error.ToString());
}
else if (e.Cancelled)
{
Console.WriteLine("Download cancelled");
}
else
{
}
//file finished downloading
Console.WriteLine("Download Completed");
if (dlInfo.responseDelegate != null)
{
dlInfo.responseDelegate.Invoke(dlInfo);
}
}
public static void HttpDownloadFile(string url, string destFilePath, Action <NetworkDownloadInfo> responseDelegate, Action <NetworkDownloadInfo> progressDelegate)
{
if (File.Exists(destFilePath))
{
Exception e = new Exception("File already exists: " + destFilePath);
throw(e);
}
NetworkDownloadInfo dlInfo = new NetworkDownloadInfo();
WebClient client = new WebClient();
Uri uri = new Uri(url);
client.DownloadFileCompleted += new AsyncCompletedEventHandler(HttpDownloadFileCompleted);
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(HttpDownloadFileProgress);
dlInfo.url = url;
dlInfo.destFilePath = destFilePath;
dlInfo.responseDelegate = responseDelegate;
dlInfo.progressDelegate = progressDelegate;
dlInfo.client = client;
client.DownloadFileAsync(uri, destFilePath, dlInfo);
}
protected static void HttpDownloadFileProgress(object sender, DownloadProgressChangedEventArgs e)
{
NetworkDownloadInfo dlInfo = (NetworkDownloadInfo)e.UserState;
dlInfo.progress = (double)e.BytesReceived / (double)e.TotalBytesToReceive;
if (dlInfo.progressDelegate != null)
{
dlInfo.progressDelegate.Invoke(dlInfo);
}
// Displays the operation identifier, and the transfer progress.
Console.WriteLine("{0} downloaded {1} of {2} bytes. {3} % complete...",
Path.GetFileName(dlInfo.destFilePath),
e.BytesReceived,
e.TotalBytesToReceive,
e.ProgressPercentage);
}
protected void FileDownloadProgress(NetworkDownloadInfo info)
{
}
protected void FileDownloaded(NetworkDownloadInfo info)
{
}