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Editorial Team
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Asked: 2026-05-20T12:26:48+00:00

Consider this scenario that two WCF clients connect to one WCF service(server), this service

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Consider this scenario that two WCF clients connect to one WCF service(server), this service will receive an object from one client and send it to the other one through some operation contract and client callbacks, both clients have the type for this object but we do not want the WCF service(server) to be dependent on this type.

The project is much bigger than this, but I wonder if you can send an object with an unknown type to a service and somehow receive it back on the other client. I saw this but it does not help me at all: Can WCF service transmit type (client doesn't know this type) information?

Thanks in advance.

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1 Answer

  1. Editorial Team

    Sending an “object” with unknown type is not possible in WCF because WCF requires a full compatibility with WSDL – and WSDL requires transparent type definition.

    Having said that, if you use a type of object I believe there is a way for this to be loaded as a string and in WSDL it is defined as xs:anyType.

    I personally would prefer defining the type as string and passing an XML which can be serialised using plain XML Serialization. I have used this in our company and it works really well, especially since we will be storing the XML as document in database.

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