当我尝试在newtonsoft.json中使用Jsonserialize时，请向字符串返回null

Question

正如我所说，我无法使用JsonConvert.SerializeObject（b）.获得字符串作为返回

这就是我正在尝试的：

        BankAccount b = new BankAccount();
        b.Agencia = "0192";
        b.AgenciaDv = "0";
        b.Conta = "03245";
        b.ContaDv = "0";
        b.BankCode = "0341";
        b.DocumentNumber = "26268738888";
        b.LegalName = "API BANK ACCOUNT";
        b.Save();
        string json = JsonConvert.SerializeObject(b);

字符串json必须接收json对象，对吗？如何获取bankaccount b对象的json对象？

编辑：我没有任何例外。BanckAccount是一个参考图书馆。

    using System;
using Newtonsoft.Json;
namespace PagarMe
{
    public class BankAccount : Base.Model
    {
        protected override string Endpoint { get { return "/bank_accounts"; } }
        public string BankCode
        {
            get { return GetAttribute<string>("bank_code"); }
            set { SetAttribute("bank_code", value); }
        }
        public string Agencia
        {
            get { return GetAttribute<string>("agencia"); }
            set { SetAttribute("agencia", value); }
        }
        public string AgenciaDv
        {
            get { return GetAttribute<string>("agencia_dv"); }
            set { SetAttribute("agencia_dv", value); }
        }
        public string Conta
        {
            get { return GetAttribute<string>("conta"); }
            set { SetAttribute("conta", value); }
        }
        public string ContaDv
        {
            get { return GetAttribute<string>("conta_dv"); }
            set { SetAttribute("conta_dv", value); }
        }
        public DocumentType DocumentType
        {
            get { return GetAttribute<DocumentType>("document_type"); }
            set { SetAttribute("document_type", value); }
        }
        public string DocumentNumber
        {
            get { return GetAttribute<string>("document_number"); }
            set { SetAttribute("document_number", value); }
        }
        public string LegalName
        {
            get { return GetAttribute<string>("legal_name"); }
            set { SetAttribute("legal_name", value); }
        }
        public bool ChargeTransferFees
        {
            get { return GetAttribute<bool>("charge_transfer_fees"); }
            set { SetAttribute("charge_transfer_fees", value); }
        }
        public BankAccount()
            : this(null)
        {
        }
    public BankAccount(PagarMeService service)
            : base(service)
        {
        }
    }

我得到的"json"变量中的结果是"｛｝"。我需要获得一个json对象来进行post请求。我能做什么？

编辑²：getAttribute：网络框架的标准方法。检索元素的命名属性的值。

SetAttribute：网络框架的标准方法。设置元素上命名属性的值。

基本型号：

public abstract class Model : AbstractModel
{
    public string Id
    {
        get
        {
            var result = GetAttribute<object>("id");
            if (result == null)
                return null;
            return result.ToString();
        }
        set { SetAttribute("id", value); }
    }
public DateTime? DateCreated
{
    get
    {
        var result = GetAttribute<DateTime?>("date_created");
        if (result == null)
            return null;
        return result;
    }
}
public DateTime? DateUpdated
{
    get
    {
        var result = GetAttribute<DateTime?>("date_updated");
        if (result == null)
            return null;
        return result;
    }
}
    private Model()
        : this(null)
    {
    }
    protected Model(PagarMeService service)
        : base(service)
    {
    }
    public void ExecuteSelfRequest(PagarMeRequest request)
    {
        LoadFrom(request.Execute().Body);
    }
    public async Task ExecuteSelfRequestAsync(PagarMeRequest request)
    {
        LoadFrom((await request.ExecuteAsync()).Body);
    }
    public void Refresh()
    {
        Refresh(Id);
    }
    internal void Refresh(string id)
    {
        if (id == null)
            throw new InvalidOperationException("Cannot refresh not existing object.");
        var request = CreateCollectionRequest("GET", "/" + id);
        var response = request.Execute();
        LoadFrom(response.Body);
    }
    #if HAS_ASYNC
    public async Task RefreshAsync()
    {
        await RefreshAsync(Id);
    }
    internal async Task RefreshAsync(string id)
    {
        if (id == null)
            throw new InvalidOperationException("Cannot refresh not existing object.");
        var request = CreateCollectionRequest("GET", "/" + id);
        var response = await request.ExecuteAsync();
        LoadFrom(response.Body);
    }
    #endif
    public void Save()
    {
        if (Id == null)
        {
            var request = CreateCollectionRequest("POST");
            request.Body = ToJson(SerializationType.Full);
            var response = request.Execute();
            LoadFrom(response.Body);
        }
        else
        {
            var request = CreateRequest("PUT");
            request.Body = ToJson(SerializationType.Shallow);
            var response = request.Execute();
            LoadFrom(response.Body);
        }
    }
    #if HAS_ASYNC
    public async Task SaveAsync()
    {
        if (Id == null)
        {
            var request = CreateCollectionRequest("POST");
            request.Body = ToJson(SerializationType.Full);
            var response = await request.ExecuteAsync();
            LoadFrom(response.Body);
        }
        else
        {
            var request = CreateRequest("PUT");
            request.Body = ToJson(SerializationType.Shallow);
            var response = await request.ExecuteAsync();
            LoadFrom(response.Body);
        }
    }
    #endif
    protected PagarMeRequest CreateRequest(string method, string endpoint = "")
    {
        return new PagarMeRequest(Service, method, Endpoint + "/" + Id + endpoint);
    }
    protected PagarMeRequest CreateCollectionRequest(string method, string endpoint = "")
    {
        return new PagarMeRequest(Service, method, Endpoint + endpoint);
    }
    internal void SetId(string id)
    {
        Id = id;
    }
    protected virtual bool CanSave()
    {
        return true;
    }
    protected abstract string Endpoint { get; }
}

认为错误与配置类似。Json需要在模型类中对字段声明进行特定配置吗？

Answer 1

我发现了问题。BankAccount类在另一个解决方案中。DLL被引用，但newtonsoft.json不能以这种方式序列化。