using System;

using Newtonsoft.Json.Schema;

using Newtonsoft.Json.Schema.Generation;

using Newtonsoft.Json.Linq;

public class Program

{

    static JSchemaGenerator generator = new JSchemaGenerator();

    static JSchema schema = generator.Generate(typeof(Temp));

    public static void Main()

    {

        var jsons = new[] {

            "{}",

            "{'Field1': \"1\"}",

            "{'Field1': \"1\", 'Field2': 2}",

            "{'Field1': \"1\", 'Field2': 2, 'Field3': 'false'}",

            "{'Field1': \"1\", 'Field2': 2, 'Field3': false}",

            "{'Field1': \"1\", 'Field2': 2, 'Field3': false, 'Field4': 4.0}",

        };

        foreach(var json in jsons)

        {

            var semiParsedJson = JObject.Parse(json);

            Console.WriteLine($"{json} is valid: {semiParsedJson.IsValid(schema)}");

        }

    }

}

​

public class Temp 

{

    public string Field1 { get; set; }

    public int Field2 { get; set; }

    public bool Field3 { get; set; }

}