WCF服务对象序列化 [英] WCF Service object serialization

问题描述

我有一个名为contact的抽象类，另一个名为client的类继承自contact。我正在使用带有类型联系参数的方法处理WCF服务。
然而我所拥有的是我想传递的客户端实例。
Im面临此错误：

I have one abstract class named contact and another class called client that inherits from contact. I'm dealing with a WCF Service with a method that takes a parameter of type contact. however what I have is an instance of client that I want to pass. Im facing this Error:

输入数据合约名称为'Client：http：// schemas'的'xxx.Client'。 datacontract.org/2004/07/xxx'不是预期的。将任何静态未知的类型添加到已知类型列表中 - 例如，通过使用KnownTypeAttribute属性或将它们添加到传递给DataContractSerializer的已知类型列表中。

Type 'xxx.Client' with data contract name 'Client:http://schemas.datacontract.org/2004/07/xxx' is not expected. Add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.

推荐答案

WCF不直接用于抽象类。您应在datacontract或服务类上使用KnownType属性。以下是示例;

WCF does not directly works on abstract classes. You shall use KnownType attributes on the datacontract or service class. below are examples;

[DataContract]
[KnownType(typeof(Client))]
public class Contact
{
   ...
}

[ServiceContract]
[ServiceKnownType(typeof(Client))]
public interface IMyService
{
    contact getcontact(Guid id);
}

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