Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Dynamic.Core;
using System.Linq.Dynamic.Core.CustomTypeProviders;
using ConsoleAppEF2.Database;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json;

namespace ConsoleAppEF2
{
    class Program
    {
        class C : AbstractDynamicLinqCustomTypeProvider, IDynamicLinkCustomTypeProvider
        {
            public HashSet<Type> GetCustomTypes()
            {
                var assemblies = AppDomain.CurrentDomain.GetAssemblies();

                var set = new HashSet<Type>(FindTypesMarkedWithDynamicLinqTypeAttribute(assemblies));

                set.Add(typeof(TestContext));

                return set;
            }
        }

        static void Main(string[] args)
        {
            var all = new 
            {
                test1 = new List<int> { 1, 2, 3 }.ToDynamicList(typeof(int)),
                test2 = new List<dynamic> { 4, 5, 6 }.ToDynamicList(typeof(int)),
                test3 = new List<object> { 7, 8, 9 }.ToDynamicList(typeof(int))
            };
            Console.WriteLine("all {0}", JsonConvert.SerializeObject(all, Formatting.Indented));

            var config = new ParsingConfig();
            config.CustomTypeProvider = new C();

            var context = new TestContext();

            context.Database.EnsureCreated();

            if (!context.Cars.Any())
            {
                context.Cars.Add(new Car { Brand = "Ford", Color = "Blue", Vin = "yes", Year = "2017" });
                context.Cars.Add(new Car { Brand = "Fiat", Color = "Red", Vin = "yes", Year = "2016" });
                context.Cars.Add(new Car { Brand = "Alfa", Color = "Black", Vin = "no", Year = "1979" });
                context.Cars.Add(new Car { Brand = "Alfa", Color = "Black", Vin = "a%bc", Year = "1979" });
                context.SaveChanges();
            }

            var carFirstOrDefault = context.Cars.Where(config, "Brand == \"Ford\"");
            Console.WriteLine("carFirstOrDefault {0}", JsonConvert.SerializeObject(carFirstOrDefault, Formatting.Indented));

            var carsLike1 =
                from c in context.Cars
                where EF.Functions.Like(c.Brand, "%a%")
                select c;
            Console.WriteLine("carsLike1 {0}", JsonConvert.SerializeObject(carsLike1, Formatting.Indented));

            var cars2Like = context.Cars.Where(c => EF.Functions.Like(c.Brand, "%a%"));
            Console.WriteLine("cars2Like {0}", JsonConvert.SerializeObject(cars2Like, Formatting.Indented));

            var dynamicCarsLike1 = context.Cars.Where(config, "TestContext.Like(Brand, \"%a%\")");
            Console.WriteLine("dynamicCarsLike1 {0}", JsonConvert.SerializeObject(dynamicCarsLike1, Formatting.Indented));

            var dynamicCarsLike2 = context.Cars.Where(config, "TestContext.Like(Brand, \"%d%\")");
            Console.WriteLine("dynamicCarsLike2 {0}", JsonConvert.SerializeObject(dynamicCarsLike2, Formatting.Indented));

            var dynamicFunctionsLike1 = context.Cars.Where(config, "DynamicFunctions.Like(Brand, \"%a%\")");
            Console.WriteLine("dynamicFunctionsLike1 {0}", JsonConvert.SerializeObject(dynamicFunctionsLike1, Formatting.Indented));

            var dynamicFunctionsLike2 = context.Cars.Where(config, "DynamicFunctions.Like(Vin, \"%a.%b%\", \".\")");
            Console.WriteLine("dynamicFunctionsLike2 {0}", JsonConvert.SerializeObject(dynamicFunctionsLike2, Formatting.Indented));
        }
    }
}