Can Json save reference only

Question

I am trying to save multiple lists of objects. The classes of these object is like this:

class Company

{

  string Name;

  List<Person> Employees= new List<Person>（）

//...

}

The Person is another class:

class Person

{

int ID;

string Name;

//....

}

I found that even I use "JsonSerializerOptions { IncludeFields = true, ReferenceHandler = ReferenceHandler.Preserve, WriteIndented = true }); " as someone taught me, in the string that save the list of companies, I still have the information of the employees (ID, Name...). I want to save the information of all the companies in one file and all the information of person in another file. Is it possible?

Answer 1

@Junfeng Liang , you could try to use Json.Net to delete the specific element to generate two different json files.

Here is a code example you could refer to.

class Program  
    {  
        static void Main(string[] args)  
        {  
            Company company = new Company();  
            company.Name = "test1";  
            company.Employees = new List<Person>() { new Person() { ID = 1001, Name = "emp1" }, new Person() { ID = 1002, Name = "emp3" }, new Person() { ID = 1003, Name = "emp3" } };  
            string jsonString = JsonConvert.SerializeObject(company);  
            JObject jo = JObject.Parse(jsonString);  
            jo.Property("Employees").Remove();  
            string json1 = jo.ToString();  
            File.WriteAllText("test1.json", json1);  
            jo = JObject.Parse(jsonString);  
            jo.Property("Name").Remove();  
            string json2 = jo.ToString();  
            File.WriteAllText("test2.json", json2);  
  
  
        }  
    }  
  
  
    class Company  
  
    {  
  
        public string Name { get; set; }  
  
        public List<Person> Employees { get; set; }  
  
  
    }  
  
  
    class Person  
  
    {  
  
        public int ID { get; set; }  
  
        public string Name { get; set; }  
  
  
    }  

Result:

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