using System;

using System.Text.Json;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var obj = new QuestionnaireTemplateAdditionalDisplayInformation()

        {Introduction = "Welcome Page Introduction", DocumentsNeeded = new List<string>()

        {"Passport", "Vaccination records", }, ThingsToKnow = new List<string>()

        {"Your name", "The name of your spouse", "The name of your offsping"}};

        var json = obj.Serialize();

        Console.WriteLine(json);

        var objDeserialized = json.Deserialize<QuestionnaireTemplateAdditionalDisplayInformation>();

        Console.WriteLine(objDeserialized.Introduction);

    }

}

​

public static class SerializeExtensions

{

    private static JsonSerializerOptions defaultSerializerSettings = new JsonSerializerOptions()

    {PropertyNamingPolicy = JsonNamingPolicy.CamelCase};

    private static JsonSerializerOptions withfeatureXSerializerSettings = new JsonSerializerOptions();

    public static string Serialize(this object obj)

    {

        return JsonSerializer.Serialize(obj, defaultSerializerSettings);

    }

​

    public static string Serialize(this object obj, JsonSerializerOptions settings)

    {

        return JsonSerializer.Serialize(obj, settings);

    }

​

    public static T Deserialize<T>(this string json)

    {

        return JsonSerializer.Deserialize<T>(json, defaultSerializerSettings);

    }

​

    public static T DeserializeCustom<T>(this string json, JsonSerializerOptions settings)

    {

        return JsonSerializer.Deserialize<T>(json, settings);

    }

​

    public static T DeserializeFeatureX<T>(this string json)

    {

        return JsonSerializer.Deserialize<T>(json, withfeatureXSerializerSettings);

    }

}

​

[Serializable]

public class QuestionnaireTemplateAdditionalDisplayInformation

{

    public int Version { get; set; }

​

    public string Introduction { get; set; } = string.Empty;

    public List<string> ThingsToKnow { get; set; } = new List<string>();

    public List<string> DocumentsNeeded { get; set; } = new List<string>();

}