問題描述

我正在使用 JSON.NET 6.0.1.當我使用 SerializeObject 方法序列化派生類的對象時，它僅序列化基類的屬性.以下是代碼片段:

I'm using JSON.NET 6.0.1. When I use the SerializeObject method to serialize an object of my derived class, it serializes properties from base class only. Here is the code snippet:

string v = JsonConvert.SerializeObject(
                service, 
                Formatting.Indented, 
                new JsonSerializerSettings()
                {
                    TypeNameHandling = TypeNameHandling.All
                });

基類:

[DataContract]
public abstract partial class DataEntity : IDataEntity, INotifyPropertyChanging, INotifyPropertyChanged
{
    ...
}

派生類:

[Table(Name = "dbo.mytable")]
public sealed class mytable : DataEntity
{
    ...
}

我錯過了什么嗎?

推薦答案

是的，您缺少派生類的 [DataContract] 屬性.您還需要將 [DataMember] 添加到您想要序列化的任何屬性或字段(如果您尚未添加它們).Json.Net 在 5.0 版本 1 中進行了更改(4 月2013)這樣 [DataContract] 屬性不會被繼承.

Yes, you are missing the [DataContract] attribute on the derived class. You also need to add [DataMember] to any properties or fields that you want serialized, if you haven't already added them. Json.Net was changed in version 5.0 release 1 (April 2013) such that the [DataContract] attribute is not inherited.

請注意，如果您從您的類中刪除所有 [DataContract] 和 [DataMemeber] 實例，Json.Net 的行為會有所不同:在在這種情況下，Json.Net 的默認行為是序列化所有公共屬性，包括基類和派生類.

Note that if you remove all instances of [DataContract] and [DataMemeber] from your classes, Json.Net behaves differently: in that case, the default behavior is for Json.Net to serialize all public properties, both in the base and derived classes.

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