Sent as a download object receives data incrementally.
Original signature is '- (void)download:(NSURLDownload *)download didReceiveDataOfLength:(NSUInteger)length'
Available in Mac OS X v10.2 with Safari 1.0 installed and later.

C# | Visual Basic | Visual C++ |
public event NSURLDownload..::..DownloadDidReceiveDataOfLengthEventHandler DownloadDidReceiveDataOfLength
Public Event DownloadDidReceiveDataOfLength As NSURLDownload..::..DownloadDidReceiveDataOfLengthEventHandler
public: event NSURLDownload..::..DownloadDidReceiveDataOfLengthEventHandler^ DownloadDidReceiveDataOfLength { void add (NSURLDownload..::..DownloadDidReceiveDataOfLengthEventHandler^ value); void remove (NSURLDownload..::..DownloadDidReceiveDataOfLengthEventHandler^ value); }

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)