This event is raised each time an asynchronous data download operation completes. Asynchronous data downloads are started by calling the erload:System.Net.WebClient.DownloadDataAsync methods.
The System.Net.DownloadDataCompletedEventHandler is the delegate for this event. The System.Net.DownloadDataCompletedEventArgs class provides the event handler with event data.
For more information about handling events, see Consuming Events.