using System;

using System.Linq;

using Castle.DynamicLinqQueryBuilder;

using System.Collections.Generic;

​

namespace QueryBuilderNestedModelTest

{

    public class StudentDTO

    {

        public int Id { get; set; }

        public List<SubjectDTO> Subjects { get; set; }

    }

    public class SubjectDTO

    {

        public int Id { get; set; }

        public string Name { get; set; }

    }

    public class Program

    {

        public static List<StudentDTO> GenerateData()

        {

            List<StudentDTO> list = new List<StudentDTO>();

            list.Add(new StudentDTO { Id = 1, Subjects = new List<SubjectDTO> { new SubjectDTO { Id = 1, Name = "Math" }, new SubjectDTO { Id = 1, Name = "Science" } } });

            list.Add(new StudentDTO { Id = 2, Subjects = new List<SubjectDTO> { new SubjectDTO { Id = 1, Name = "Math" }, new SubjectDTO { Id = 1, Name = "Science" } } });

            list.Add(new StudentDTO { Id = 3, Subjects = new List<SubjectDTO> { new SubjectDTO { Id = 1, Name = "History" }, new SubjectDTO { Id = 1, Name = "Geography" } } });

            return list;

        }

        public static void Main(string[] args)

        {

            var searchFilterTest = new QueryBuilderFilterRule()

            {

                Condition = "and",

                Rules = new List<QueryBuilderFilterRule>()

                {

                    new QueryBuilderFilterRule()

                    {

                        Condition = "and",

                        Field = "Subjects.Name",

                        Id = "Name",

                        Operator = "not_equal", //not_equal

                        Type = "string",

                        Value = new [] { "Geography" }

                    }

                }

            };

            var data = GenerateData().AsQueryable().BuildQuery(searchFilterTest);

            Console.Write(data.Count());

        }

    }

}

​