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 Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

// https://stackoverflow.com/questions/46371320/c-sharp-creating-generic-list-from-jarray/46371549#46371549

​

namespace BusinessObjects

{

    public class Contact

    {

        public string Name;

        public bool NameInitialized { get { return !string.IsNullOrWhiteSpace(Name); }}

    }

}

​

    class TestClass

    {

        public static void Test()

        {

            // ... filled jsonstring from api request

            string json = GetJson(); // json filled from rest request

            Console.WriteLine("\nInput JSON: ");

            Console.WriteLine(json);

​

            string classname = "BusinessObjects.Contact";

            Type classtype = Type.GetType(classname);

​

            JObject obj = JObject.Parse(json);

            JArray array = (JArray)obj["contacts"];

            // the issue part...

            var listType = typeof(List<>).MakeGenericType(classtype);

            var records = array.ToObject(listType);         

​

            Console.WriteLine("\nReserialized records: ");

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

        }       

        static string GetJson()

        {

            var json = @"

            {

    ""contacts"": 

    [

        { ""name"": ""Foo"" }, {}, {""Name"": ""Bar""}

    ]

}";

            return json;

        }

    }

​

​

    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");

        }

    }

​