JavascriptSerializer не может десериализовать объект

Question

Я строю проект в C#.

по этой причине я использую объект под названием «Счет»

Я сохраняю его как формат JSON.

До сих пор я умел играть с ним бит-литом, и все было в порядке. внезапно, когда я получил код здесь:

private void ReadAccountsData() 
{ 

      string[] files = Directory.GetFiles(_pathAccount, "*.json"); 
      string text; 
      foreach (string json in files) 
      { 

       text = System.IO.File.ReadAllText(json); 
       JavaScriptSerializer jsonSerializer = new JavaScriptSerializer(new SimpleTypeResolver()); 
        // problem! 
       Account dto = (Account)jsonSerializer.Deserialize(text, typeof(Account)); // ISSUE 


      } 

} 

он говорит:

An exception of type 'System.MissingMethodException' occurred in mscorlib.dll but was not handled in user code 

Additional information: No parameterless constructor defined for this object. 

Я удалил и очистить все мои DLL файлы, и все же это не сработало.

// класс счета:

using ATMInfra.interfaces; 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 

namespace ATMInfra 
{ 
    [Serializable] 
    public class Account:IAccount 
    { 
     List<ClientPersonalDetailsDTO> _owners; 

     public List<ClientPersonalDetailsDTO> Owners 
     { 
      get { return _owners; } 
      set { _owners = value; } 
     } 

     Dictionary<string, IPakam> _pakams; 

     public Dictionary<string, IPakam> Pakams 
     { 
      get { return _pakams; } 
      set { _pakams = value; } 
     } 
     Dictionary<string, ITransaction> _transactions; 

     public Dictionary<string, ITransaction> Transactions 
     { 
      get { return _transactions; } 
      set { _transactions = value; } 
     } 
     private float _balance; 

     public float Balance 
     { 
      get { return _balance; } 
      set { _balance = value; } 
     } 


     private int _account_number = -1; 

     public int Account_number 
     { 
      get { return _account_number; } 
      set { _account_number = value; } 
     } 

     private int _pakamNumber = 0; 

     public int PakamNumber 
     { 
      get { return _pakamNumber; } 
      set { _pakamNumber = value; } 
     } 


     public Account() 
     { 

      _balance = 0; 
      // pakam name + implemantaion 
      _pakams = new Dictionary<string, IPakam>(); 
      _transactions = new Dictionary<string, ITransaction>(); 
      _owners = new List<ClientPersonalDetailsDTO>(); 
     } 



     public void AddOwners(ClientPersonalDetailsDTO owner) 
     { 
      _owners.Add(owner); 
     } 
     public void AddToBalance(float amount) 
     { 
      _balance += amount; 
     } 

     public bool CanWithDraw(float amount) 
     { 
      return amount <= Balance; 
     } 

     public void WithDraw(float amount) 
     { 
      _balance -= amount; 
     } 


     public bool AddPakam(IPakam pkm) 
     { 
      if (pkm.Amount > _balance) 
      { 
       return false; 
      } 
      _pakams.Add("" +_pakamNumber++, pkm); 
      _balance -= pkm.Amount; 
      return true; 

     } 

     public void AddTransaction(ITransaction transaction) 
     { 
      string nameDate = transaction.Name +" "+ DateTime.Now.ToShortDateString(); 
      _transactions.Add(nameDate, transaction); 
      //_transactions[nameDate] = transaction; 
     } 

     public void RemovePakam(IPakam pkm) 
     { 
      if (_pakams.ContainsKey(pkm.PakamID)) 
      { 
       _pakams.Remove(pkm.PakamID); 
       _balance += pkm.Amount; 
      } 
     } 

     public void RemoveTransaction(ITransaction transaction) 
     { 
      if (_transactions.ContainsKey(transaction.Name)) 
      { 
       _transactions.Remove(transaction.Name); 
      } 
     } 

     public Dictionary<string, ITransaction> GetTransactions() 
     { 
      return _transactions; 
     } 

     public int GetAccountNumber() 
     { 
      return _account_number; 
     } 


     public float GetBalance() 
     { 
      return _balance; 
     } 


     public Dictionary<string, IPakam> GetPakams() 
     { 
      return _pakams; 
     } 


     public int GeneratePakamID() 
     { 
      return _pakamNumber; 
     } 

     public override string ToString() 
     { 
      Console.WriteLine("Clients details : "); 
      foreach (ClientPersonalDetailsDTO client in _owners) 
      { 
       Console.WriteLine(client); 
      } 
      return "\nAccount : " + Account_number + "\n-current balance : " + Balance + "\n--Number of transactions: " + Transactions.Count + "\n---Number of Pakams: " + Pakams.Count + " Pakams"; 
     } 

     public Account GetAccoutJson() 
     { 
      return this; 
     } 


     public void AddAccountNumber(int accountNumber) 
     { 
      Account_number = accountNumber; 
     } 
    } 
} 

// JSON СЧЕТ Пример

{"__type":"ATMInfra.Account, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","Owners":[{"__type":"ATMInfra.ClientPersonalDetailsDTO, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","FirstName":"1","LastName":"1","ID":"1","Address":{"__type":"ATMInfra.Address, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","City":"1","Street":"1","StreetNumber":1},"UserNAme":"1","Password":"1","AccountNumber":"0"}],"Pakams":{"0":{"__type":"ATMInfra.PakamDaily, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458258314948)\/","Amount":200,"Name":"Open Pakam transaction","PakamID":"0","BeginDate":"\/Date(1458258314948)\/","EndDate":"\/Date(1458344714948)\/","ProfitPercentage":2}},"Transactions":{"Diposit transaction via: check18-Mar-16":{"__type":"ATMInfra.DipositTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458257731695)\/","Amount":2000.25,"Name":"Diposit transaction via: check"},"Withdraw transaction18-Mar-16":{"__type":"ATMInfra.WithDrawTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458257625563)\/","Amount":1,"Name":"Withdraw transaction"},"Fail to Withdraw transaction18-Mar-16":{"__type":"ATMInfra.WithDrawTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458257693742)\/","Amount":2000,"Name":"Fail to Withdraw transaction"},"Diposit transaction via: cash18-Mar-16":{"__type":"ATMInfra.DipositTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458255736255)\/","Amount":1,"Name":"Diposit transaction via: cash"},"Withdraw transaction 18-Mar-16":{"__type":"ATMInfra.WithDrawTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458257848390)\/","Amount":2000,"Name":"Withdraw transaction"},"Fail to Withdraw transaction 18-Mar-16":{"__type":"ATMInfra.WithDrawTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458257940695)\/","Amount":2000,"Name":"Fail to Withdraw transaction"},"Diposit transaction via: check 18-Mar-16":{"__type":"ATMInfra.DipositTransaction, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458258048571)\/","Amount":800,"Name":"Diposit transaction via: check"},"Open Pakam transaction 18-Mar-16":{"__type":"ATMInfra.PakamDaily, ATMInfra, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null","IDExecuter":"1","Date":"\/Date(1458258314948)\/","Amount":200,"Name":"Open Pakam transaction","PakamID":"0","BeginDate":"\/Date(1458258314948)\/","EndDate":"\/Date(1458344714948)\/","ProfitPercentage":2}},"Balance":820.1699,"Account_number":0,"PakamNumber":1} 

любые идеи?

Благодаря

Answer 1

ошибка дает вам подробную информацию: Нет без параметров конструктора, определенные для этого объекта.

Это означает, что он ищет конструктор класса Account, который не имеет параметров (т. Е. new Account();). Существует ли безразмерный конструктор для учетной записи?