c# - CallBack Contract and Binding -


i have service on web site. try run example, first server part: :what steps need take use wcf callbacks?

but message: "contract requires duplex, binding 'basichttpbinding' doesn't support or isn't configured support it."

the web.config file, doesn't have definitions such 'basichttpbinding'. has more general defitions. have add lines it, or there more simple way. many thanks.


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