从Jobject Newtonsoft继承 [英] Inheritance from Jobject Newtonsoft

问题描述

从Jobject(Newtonsoft)继承而来的未序列化类的existents属性.

Inheritance from Jobject(Newtonsoft) the existents properties from class not serialized.

为什么没有对ID和Name属性进行序列化?

Why were the Id and Name properties not serialized?

public class Test : JObject
{
    public int Id { get; set; }
    public string Name { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        var test = new Test();
        test["new_pro"] = 123456;
        test.Id = 1;
        test.Name = "Dog";


        var r = Newtonsoft.Json.JsonConvert.SerializeObject(test);

        // Result = { "new_pro":123456}

    }
}

有什么主意吗?

推荐答案

无论您要这样做的原因是什么-原因很简单:JObject实现IDictionary，Json以特殊方式处理这种情况.网.如果您的类实现IDictionary-Json.NET将不会查看您类的属性，而是会在字典中查找键和值.因此，要解决您的问题，您可以执行以下操作:

Whatever is the reason you want to do that - the reason is simple: JObject implements IDictionary and this case is treated in a special way by Json.NET. If your class implements IDictionary - Json.NET will not look at properties of your class but instead will look for keys and values in the dictionary. So to fix your case you can do this:

public class Test : JObject
{
    public int Id
    {
        get { return (int) this["id"]; }
        set { this["id"] = value; }
    }

    public string Name
    {
        get { return (string) this["name"]; }
        set { this["name"] = value; }
    }
}

如果只想在对象上同时具有动态和静态属性，则无需从JObject继承.而是使用JsonExtensionData属性:

If you just want to have both dynamic and static properties on your object - there is no need to inherit from JObject. Instead, use JsonExtensionData attribute:

public class Test {
    public int Id { get; set; }
    public string Name { get; set; }

    [JsonExtensionData]
    public Dictionary<string, JToken> AdditionalProperties { get; set; } = new Dictionary<string, JToken>();
}

var test = new Test();
test.AdditionalProperties["new_pro"] = 123456;
test.Id = 1;
test.Name = "Dog";            
var r = Newtonsoft.Json.JsonConvert.SerializeObject(test);

这篇关于从Jobject Newtonsoft继承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！