Can I compose a WCF callback contract out of multiple interfaces?
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Published on 2010-03-23T21:24:20Z
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2010/03/23
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Followup question to http://stackoverflow.com/questions/2502930/how-can-i-compose-a-wcf-contract-out-of-multiple-interfaces.
I tried to merge multiple callback interfaces in a single interface. This yields an InvalidOperationException claiming that the final interface contains no operations. Technically, this is true, however, the inherited interfaces do contain operations.
How can I fix this? Or is this a limitation of WCF?
Edit:
interface A { [OperationContract]void X(); }
interface B { [OperationContract]void Y(); }
interface C: A, B {} // this is the public callback contract
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