Json.Net向EF对象添加$ id，尽管将PreserveReferenceHandling设置为“无” [英] Json.Net adding $id to EF objects despite setting PreserveReferencesHandling to "None"

问题描述

我已经看过如何在JSON序列化期间删除$ id 但是给出的答案似乎不适用于我，我希望有人可以弄清楚我做错了什么。

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.

这是我的代码： p>

Here is my code:

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

这个输出仍然是以$ id的形式出现的，但是只有在Entity Framework对象上才是这是通过设计？如果是这样，有没有办法阻止那些$ id在Entity Framework对象上？

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 设置覆盖 PreserveReferencesHandling 设置。

在执行 DefaultContractResolver / IContractResolver ，添加这个;

In your implementation of DefaultContractResolver/IContractResolver, add this;

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

这个行为类似于 PreserveReferencesHandling.None 设置没有自定义 ContractResolver 。

这篇关于Json.Net向EF对象添加$ id，尽管将PreserveReferenceHandling设置为“无”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！