public void TestGetCSV()
        {
            TestEntity affiliate = new TestEntity();
            affiliate.Id = 1000;
            affiliate.Description = "desc 1";

            TestEntity affiliate0 = new TestEntity();
            affiliate0.Id = 1001;
            affiliate0.Description = "desc 2";

            TestEntity affiliate1 = new TestEntity();
            affiliate1.Id = 1002;
            affiliate1.Description = "desc 3";

            String[] stringArray = new string[] { "amin", "abel" };

            affiliate1.StringArray = stringArray;

            EntityCollection<TestEntity> collection = new EntityCollection<TestEntity>();
            collection.Add(affiliate);
            collection.Add(affiliate0);
            collection.Add(affiliate1);

            Console.Write(collection.GetCSV());
        }