Does MTOM require a messageContract in WCF?

Question

Is there any way use datacontracts while using Mtom?

Answer 1

There's nothing preventing you from using data contracts with MTOM.

Answer 2

no, but the only thing in the body of the message must be the file. if you have more than one parameter in the method, you must use a message contract because you have to specify where the things will go, on the header or on the body. This way you can put only the file in the body.