S3Service methods like AddObject and GetObject (and family) that represent potentially long-running operations, do not provide a simple means for a client application to show progress to the user. The attached patch proposes two events on S3Service:

• AddObjectProgressChanged
• GetObjectProgressChanged

These events fire during the processing of any of the AddObject or GetObject family of methods. The event sink receives arguments of type ObjectTransferProgressChangedEventArgs whose properties supply information about the progress of a transfer:

• BucketName
• Key
• BytesTransferred
• TotalBytesToTransfer
• ProgressPercentage (inherited)
• UserState (inherited)

Implemented in r52.