public void BatchEditTest()
        {
            Student v1 = new Student();
            Student v2 = new Student();

            using (var context = new DataContext(_seed, DBTypeEnum.Memory))
            {
                v1.Name = "Ig1N37FOm";
                v1.Age  = 20;
                v2.Name = "fQFq";
                v2.Age  = 92;
                context.Set <Student>().Add(v1);
                context.Set <Student>().Add(v2);
                context.SaveChanges();
            }

            PartialViewResult rv = (PartialViewResult)_controller.BatchDelete(new string[] { v1.ID.ToString(), v2.ID.ToString() });

            Assert.IsInstanceOfType(rv.Model, typeof(StudentBatchVM));

            StudentBatchVM vm = rv.Model as StudentBatchVM;

            vm.Ids = new string[] { v1.ID.ToString(), v2.ID.ToString() };

            vm.LinkedVM.Name = "QSln";
            vm.LinkedVM.Age  = 13;
            vm.FC            = new Dictionary <string, object>();

            vm.FC.Add("LinkedVM.Name", "");
            vm.FC.Add("LinkedVM.Age", "");
            _controller.DoBatchEdit(vm, null);

            using (var context = new DataContext(_seed, DBTypeEnum.Memory))
            {
                var data1 = context.Set <Student>().Find(v1.ID);
                var data2 = context.Set <Student>().Find(v2.ID);

                Assert.AreEqual(data1.Name, "QSln");
                Assert.AreEqual(data2.Name, "QSln");
                Assert.AreEqual(data1.Age, 13);
                Assert.AreEqual(data2.Age, 13);
                Assert.AreEqual(data1.UpdateBy, "user");
                Assert.IsTrue(DateTime.Now.Subtract(data1.UpdateTime.Value).Seconds < 10);
                Assert.AreEqual(data2.UpdateBy, "user");
                Assert.IsTrue(DateTime.Now.Subtract(data2.UpdateTime.Value).Seconds < 10);
            }
        }