How to generate nested Object inside nested Object till the empty value found

Question

I'M beginner to generate JSON format. Is it possible to generate JSON like below? (End less loop till the no value found in ChildName)

I followed this link

[{
  "id": "100",
  "name": "ParentEMP_0",
  "data": {
    "phone": "2469465",
    "email": "parent.data0@somemail.com"
  },
  "children": [{
    "ChildName": "ChildEMP_0",
    "ChildName2": [{
      "ChildName": "ChildEMP_0",
      "ChildName2": [{
        "ChildName": "ChildEMP_0",
        "ChildName2": [{
          "ChildName": "ChildEMP_0",
          "ChildName2": []
        }]
      }]
    }]
  }]
}]

List<Employee> empListWithChildren = new List<Employee>();

        for (int i = 0; i < 1; i++)
        {
            // Init parent employee and set properties/data.
            Employee parentEmp = new Employee
            {
                ID = (100 + i).ToString(),
                Name = "ParentEMP_" + i,
                Data = new Person(RandomNo.Next(1111111, 3333333).ToString(), "parent.data" + i + "@somemail.com"),
                Children = new List<Employee1>()
            };

            // Add child employees to the parent employee.
            for (int y = 0; y < 3; y++)
            {
                Employee1 childEmp = new Employee1
                {
                    name = "ChildEMP_" + y,
                    child1 = new List<Employee2>()
                };

                for (int x = 0; x < 3; x++)
                {
                    Employee2 childEmp2 = new Employee2
                    {
                        name2 = "Child2" + x
                    };

                    childEmp.child1.Add(childEmp2);
                }

                parentEmp.Children.Add(childEmp);
            }

            // Add parent employee to the main employee list.
            empListWithChildren.Add(parentEmp);
        }

        // Json.NET serializer.
        JsonSerializer serializer = new JsonSerializer
        {
            MissingMemberHandling = MissingMemberHandling.Ignore,
            NullValueHandling = NullValueHandling.Include,
            ObjectCreationHandling = ObjectCreationHandling.Replace,
            ReferenceLoopHandling = ReferenceLoopHandling.Ignore
        };

        // Serialize the main employee list.
        StringWriter sw = new StringWriter();
        JsonTextWriter writer = new JsonTextWriter(sw)
        {
            Formatting = Formatting.Indented,
            QuoteChar = '"'
        };

        serializer.Serialize(writer, empListWithChildren);
        string jsonStr = sw.ToString();
    }

And declaration is below

 [Serializable, DataContract(Name = "Employee"), KnownType(typeof(Person)),
 KnownType(typeof(Employee))]
public class Employee
{
    [DataMember(Name = "id")]
    public string ID { get; set; }

    [DataMember(Name = "name")]
    public string Name { get; set; }

    [DataMember(Name = "data")]
    public Person Data { get; set; }

    [DataMember(Name = "children")]
    public List<Employee1> Children { get; set; }
}

[Serializable, DataContract(Name = "Employee1"), KnownType(typeof(Person)),
 KnownType(typeof(Employee1))]
public class Employee1
{
    [DataMember(Name = "ChildName")]
    public string name { get; set; }
    [DataMember(Name = "ChildName2")]
    public List<Employee2> child1 { get; set; }
}

[Serializable,DataContract(Name = "Employee2"),KnownType(typeof(Person)),
KnownType(typeof(Employee2))]
public class Employee2
{
    [DataMember(Name = "ChildName2")]
    public string name2 { get; set; }
}

[Serializable,DataContract(Name = "Person")]
public class Person
{
    [DataMember(Name = "phone")]
    public string Phone { get; set; }

    [DataMember(Name = "email")]
    public string Email { get; set; }

    public Person(string phone, string email)
    {
        Phone = phone;
        Email = email;
    }
}

---

I tried as above. But, i got JSON like this. I don't know how to repeat the ChildName2 loop till no value found in it.

Actually i need to use that code in comments and reply section for a post just like facebook comment section .

OR is there any other example to generate that endless json?

UPDATE: I found the Answer