我发现发生了什么。

它没有显示的原因是我定义了datacontract，但没有在界面中使用它。在我使用datacontract后，我在客户端看到它。



顺便说一下，谢谢大家！

I find out what is going on.
the reason it did not show up is I defined datacontract , but did not use it in interface. after I use the datacontract I see it on client side.

by the way, thank you everyone !

是的，Alimjan Yasin。你是对的，在创建数据合同类之后我们必须在界面中使用它。但我不明白为什么？希望有人可以提供帮助吗？

Yes, Alimjan Yasin. You are right, after creating data contract class we have to use it in interface. But I don't get it why ? Hope somebody can help ?

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