Serialization in C# didn't serialize all the information (ex. I got name and dateOfBirth of per-CodePudding

The code for serialization is:

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.Json;

namespace TxtToXmlParser.Parser
{
    public static class JSONserializerService
    {
        public static void Serialize<T>(string filePath,T data)
        {

            var jsonString = JsonSerializer.Serialize(data);
            //Console.WriteLine(jsonString);
            using FileStream fs = File.OpenWrite(filePath);
            byte[] bytes = Encoding.UTF8.GetBytes(jsonString);
            fs.Write(bytes, 0, bytes.Length);

        }
    }

}

First I create class Person, Student and Professor. Student and Professor inherits Class Person. I use parse data of that classes and searilize it to JSON file. I only get property of Person class (ex. "OIB":"001212","Name":"Iva Ivi\u0107","Date":"1998-02-02T00:00:00","Gender":1) but not "Grade":"4.3" which is only Student property. I got this file:

[{"OIB":"001212","Name":"Iva Ivi\u0107","Date":"1998-02-02T00:00:00","Gender":1},{"OIB":"001213","Name":"Ivan Zoraja","Date":"1961-01-01T00:00:00","Gender":0}]

but i need to get:

[{"OIB":"001212","Name":"Iva Ivi\u0107","Date":"1998-02-02T00:00:00","Gender":1,**"Grade":"4.3"**},{"OIB":"001213","Name":"Ivan Zoraja","Date":"1961-01-01T00:00:00","Gender":0, **"Salary":"10020.00"**}]

CodePudding user response：

The generic Serialize<T> method serializes the object as the type T, if you assigned the instance to its parent type variable, only the properties in parent class will be serialized.

Person person = new Student();
Serialize<Person>(filePath, person);

Try to explicitly tell the type to the serializer.

public static void Serialize(string filePath, object data)
{
    var jsonString = JsonSerializer.Serialize(data, data.GetType());
    ....
}

CodePudding user response：

Person Class:

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Xml.Serialization;

namespace TxtToXmlParser.Model
{

    public abstract class Person
    {

        public  string OIB { get; set; }
        
        public string Name { get; set; }
        
        public  DateTime Date{ get; set; }
        
        public  Gender Gender{ get; set; }


        public Person() { }
        protected Person(string oIB, string name, Gender gender, DateTime date)
        {
            OIB = oIB;
            Name = name;
            Date = date;
            Gender = gender;
        }
    }
}

CodePudding user response：

Student class:

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Text;
using System.Xml.Serialization;

namespace TxtToXmlParser.Model
{

    public  class Student : Person
    {
      
        public float AvgGrade { get;  set; }
        public Student() { }

        public Student(float avgGrade, string oIB, string name, Gender gender, DateTime date) : base(oIB, name, gender, date)
        {
            AvgGrade = avgGrade;
        }
    }
}