我该怎么办JSON序列忽略导航性质？ [英] How can I do JSON serializer ignore navigation properties?

问题描述

我是完全一样的情况下，这个问题：
<一href=\"http://stackoverflow.com/questions/21292010/how-do-i-make-json-net-ignore-object-relationships\">How让我的JSON.NET忽略对象关系

I am exactly in the same case that this question: How Do I Make JSON.NET Ignore Object Relationships

我看到了建议的解决方案，我知道我必须使用合同左轮手枪，我也看到了合同解析器的code，但我不知道如何使用它。

I see the proposed solution and I know I must use a Contract Revolver, and I also see the code of the Contract Resolver, but I do not know how to use it.

• 我应该用它在WebApiConfig.vb？


• 我应该反正修改我的实体模型？

请，我将非常高兴与方法的任何帮助。

Please, I would be very glad of any help with the approach.

感谢您

推荐答案

我希望这种方式帮助：

如果您的模型创建的基础上，实体框架，你可以看到每个相关特性标记为虚拟。

If your models created base on Entity Framework, you can see each Relation Property marked as Virtual.

此外，如果你做手工的模型（无 EF ），你可以标记的关系属性虚拟来忽略它们在 JSON 通过下面的示例codeS序列化：

Also if you makes your models manually (without EF), you can mark the relation properties as Virtual to ignore them in JSON serialization by the following sample codes:

class CustomResolver : DefaultContractResolver
{
    protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
    {
        JsonProperty prop = base.CreateProperty(member, memberSerialization);
        var propInfo = member as PropertyInfo;
        if (propInfo != null)
        {
            if ( propInfo.GetMethod.IsVirtual && !propInfo.GetMethod.IsFinal)
            {
                prop.ShouldSerialize = obj => false;
            }
        }
        return prop;
    }
}

现在使用上述 ContractResolver 是这样的：

Now use above ContractResolver like this:

 // Serializer settings
    JsonSerializerSettings settings = new JsonSerializerSettings();
    settings.ContractResolver = new CustomResolver();
    settings.PreserveReferencesHandling = PreserveReferencesHandling.None;
    settings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
    settings.Formatting = Formatting.Indented;

    // Do the serialization and output to the console
    string json = JsonConvert.SerializeObject(pc, settings);

在结果所有的导航（关系）的属性[虚拟财产]将忽略...

In the result all the navigation (relation) properties [virtual properties] will be ignore...

通过 @BrianRogers 感谢他的回答<一个href=\"http://stackoverflow.com/questions/21292010/how-do-i-make-json-net-ignore-object-relationships#21295181\">here.

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