在ASP.NET的Web API序列化继承类型 [英] Serializing inherited types in ASP.NET Web API

问题描述

我在网页API继承序列化对象时出现问题。

I have a problem when serializing inherited objects in Web API.

[DataContract] 
public class Item{
     [DataMember]
     public int ID{get; set;}
     [DataMember]
     public string Name{get; set;} }

[DataContract] 
public class SitecoreItem : Item{
     [DataMember]     
     public DbType SitecoreInstance{get; set;} }

我想从返回的WebAPI上述SitecoreItem，但它尖叫序列化的错误。我在做什么错了？

I am trying to return the above mentioned SitecoreItem from WebAPI, but it screams serialization errors. What am I doing wrong?

推荐答案

这是不超过WCF的序列化不同。只需使用 KnownType

This is no different than serialization in WCF. Just use KnownType

[DataContract] 
[KnownType(typeof(SitecoreItem))]
public class Item{
     [DataMember]
     public int ID{get; set;}
     [DataMember]
     public string Name{get; set;} }

[DataContract] 
public class SitecoreItem : Item{
     [DataMember]     
     public DbType SitecoreInstance{get; set;} 
}

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