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