Newtonsoft.Json序列化返回空的json对象 [英] Newtonsoft.Json serialization returns empty json object

问题描述

我有以下类别的对象的列表:

I have list of objects of following class:

public class Catagory
{
    int catagoryId;
    string catagoryNameHindi;
    string catagoryNameEnglish;
    List<Object> subCatagories;
    public Catagory(int Id, string NameHindi, string NameEng,List<Object> l)
    {
        this.catagoryId = Id;
        this.catagoryNameHindi = NameHindi;
        this.catagoryNameEnglish = NameEng;
        this.subCatagories = l;
    }
}

  public class SubCatagory
{
    int subCatagoryId { get; set; }
    string subCatNameHindi { get; set; }
    string subCatNameEng { get; set; }

    public SubCatagory(int Id, string NameHindi, string NameEng)
    {
        this.subCatagoryId = Id;
        this.subCatNameEng = NameEng;
        this.subCatNameHindi = NameHindi;
    }
}

当我使用Newtonsoft将列表转换为json字符串时，Json返回空对象数组.

when I am converting this list to json string by using Newtonsoft.Json it returns array of empty objects.

  string json=JsonConvert.SerializeObject(list);

我得到以下结果.

[{}，{}，{}，{}，{}]

[{},{},{},{},{}]

关于这个问题，请帮助我.

Please help me regarding this problem.

推荐答案

默认情况下，NewtonSoft.Json将仅序列化公共成员，因此将您的字段公开:

By default, NewtonSoft.Json will only serialize public members, so make your fields public:

public class Catagory
{
    public int catagoryId;
    public string catagoryNameHindi;
    public string catagoryNameEnglish;
    public List<Object> subCatagories;

    public Catagory(int Id, string NameHindi, string NameEng, List<Object> l)
    {
        this.catagoryId = Id;
        this.catagoryNameHindi = NameHindi;
        this.catagoryNameEnglish = NameEng;
        this.subCatagories = l;
    }
}

编辑:如果出于某些原因您确实不想公开自己的字段，则可以使用

If for some reason you really don't want to make your fields public, you can instead decorate them with the JsonPropertyAttribute to allow them to be serialized and deserialized:

[JsonProperty]
int catagoryId;

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