using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

​

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

// https://stackoverflow.com/questions/47106249/deserialize-json-to-object-in-netstandard1-0

​

    public class MyModel

    {

        public string key { get; set; }

        public List<string> errors { get; set; }

    }

​

    class TestClass

    {

        public static void Test()

        {

            var json = "[{\"key\":\"Password\",\"errors\":[\"The Password field is required.\"]},{\"key\":\"UserName\",\"errors\":[\"The UserName field is required.\"]},{\"key\":\"OrganizationUserName\",\"errors\":[\"The OrganizationUserName field is required.\"]}]";

​

            Console.WriteLine("Input JSON: ");

            Console.WriteLine(JToken.Parse(json));          

            var list = JsonConvert.DeserializeObject<List<MyModel>>(json);

            Console.WriteLine("\nRe-serialized JSON: ");

            Console.WriteLine(JsonConvert.SerializeObject(list, Formatting.Indented));

            //var Data = list.SingleOrDefault();

        }

    }

​

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​

    public class AssertionFailedException : System.Exception

    {

        public AssertionFailedException() : base() { }

​

        public AssertionFailedException(string s) : base(s) { }

    }

​

    public static class Assert

    {

        public static void IsTrue(bool value)

        {

            IsTrue(value, "failed");

        }

​

        public static void IsTrue(bool value, string message)

        {

            if (value == false)

                throw new AssertionFailedException(message ?? "failed");

        }

    }

​