A: 

It's not really possible to get the size of a file before you save it off from the DataHandler. Think about it. MTOM is a technology to stream binary files to a web service. The question you've asked is akin to saying "How long is this telephone call going to last?" You can't know for sure until you've hung up the phone.

rtperson  2010-09-24 18:25:27

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