Json.Net增加$ id来EF对象，尽管设置preserveReferencesHandling到＆QUOT;无＆QUOT; [英] Json.Net adding $id to EF objects despite setting PreserveReferencesHandling to "None"

问题描述

我已经看了如何JSON序列中删除的$ id ，但给予的回答似乎并没有为我工作，我希望有人能找出什么我做错了。

I've already looked at how to remove $id during JSON serialization but the answers given do not seem to be working for me and I hope someone can figure out what I am doing wrong.

下面是我的code：

return JsonConvert.SerializeObject(target, new JsonSerializerSettings {
    NullValueHandling = NullValueHandling.Include,
    PreserveReferencesHandling = PreserveReferencesHandling.None,
    ContractResolver = new CustomContractResolver(),
    Converters = CustomConverters
});

从这个产量还走出来的$ id的，但是，只有在实体框架的对象，这是设计？如果是这样，有什么办法prevent那些$ ID对实体框架的对象？

The output from this is still coming out with $id's, BUT, only on Entity Framework objects, is this by design? If so, is there any way to prevent those $id's on Entity Framework objects?

推荐答案

自定义 ContractResolver 设置将覆盖 preserveReferencesHandling 设置。

The custom ContractResolver setting overrides the PreserveReferencesHandling setting.

在您的实现 DefaultContractResolver / IContractResolver ，加这一点;

In your implementation of DefaultContractResolver/IContractResolver, add this;

public override JsonContract ResolveContract(Type type) {
    var contract = base.ResolveContract(type);
    contract.IsReference = false;
    return contract;
}

此功能类似于 preserveReferencesHandling.None 设置，而无需自定义 ContractResolver 。

This behaves similarly to the PreserveReferencesHandling.None setting without a custom ContractResolver.

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