public WebFile(Uri fileUri, string filePath)
{
if (fileUri == null || filePath == null)
{
throw new ArgumentNullException();
}
FileUri = fileUri;
FilePath = filePath;
m_WebClient.DownloadFileCompleted += WebClientOnDownloadFileCompleted;
m_WebClient.DownloadProgressChanged +=
(sender, args) => DownloadProgressChanged.Handle(h => h(sender, args));
}