Sent as the body (message data) of a request is transmitted (such as in an http POST request).
Original signature is '- (void)connection:(NSURLConnection *)connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite'
Available in Mac OS X v10.6 and later.

C# | Visual Basic | Visual C++ |
public event NSURLConnection..::..ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWriteEventHandler ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWrite
Public Event ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWrite As NSURLConnection..::..ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWriteEventHandler
public: event NSURLConnection..::..ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWriteEventHandler^ ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWrite { void add (NSURLConnection..::..ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWriteEventHandler^ value); void remove (NSURLConnection..::..ConnectionDidSendBodyDataTotalBytesWrittenTotalBytesExpectedToWriteEventHandler^ value); }

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