Is it possible?

[ouloba]

Can I client side use async method invoke and server side use async method dispath?

[marc]

Yes, of course. It does not matter to the client if the server uses synchronous or asynchronous dispatch, and neither does it matter to the server if the client uses synchronous or asynchronous invocations. Asynchronous vs. synchronous invocation or dispatch are implementation choices, with no impact on the client/server contract.

[ouloba]

thanks for marc's helps.