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 System.Reflection;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/76139164/selecttoken-with-specific-c-sharp

​

    class TestClass

    {

        public static void Test()

        {

            var jsonVal = JToken.Parse(GetJson());

            var test = jsonVal.SelectTokens("data.list1[*]").Where(x => x.SelectTokens("list2[?(@.value > 15)]").Count() != 0);

​

            var test2 = jsonVal.SelectTokens($"data.list1[*].list2[?(@.value.Date > 15)]");             

​

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

            Console.WriteLine(JsonConvert.SerializeObject(test2, Formatting.Indented));

        }   

        static string GetJson() =>

"""

 {

    "data": {

        "list1": [

            {

                "list2": [

                    {

                        "value": {

                            "Date": 20

                        }

                    }

                ]

            },

            {

                "list2": [

                    {

                        "value": {

                            "Date": 10

                        }

                    }

                ]

            }

        ]

    }

}

""";

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1}), {2}", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version, Environment.OSVersion);

            Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Namespace, typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

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

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​