public void executeOperation(Button btn, Label lbl, String url, IDownloadObserver observer)
{
mIDownloadObserver = observer;
//
if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable())
{
if (mIDownloadObserver != null)
{
mIDownloadObserver.onMessage(new DownloadArgument("NetworkFailed"));
}
return;
}
if (btn.Text == "Cancel")
{
btn.Text = "Download";
cancel(url);
return;
}
FileDownloader fd = create(lbl, url, observer, btn);
if (fd.DownloadStatus == "Continue")
{
return;
}
if (fd.DownloadStatus != "Completed")
{
fd.DownloadAsync(url, this);
btn.Text = "Cancel";
btn.Enabled = true;
}
}
void IDownloadObserver.onMessage(DownloadArgument e)
{
if (mIDownloadObserver != null)
{
mIDownloadObserver.onMessage(e);
}
}