EF6不保存更改

在下面的代码中,我围绕多个savechanges包装了一个dbContextTransactions。ViewModel中的所有内容都包含正确的数据,但由于某些原因,EF不保存更改。当我调试它时,我没有看到任何异常抛出。有什么特殊的事情我需要做的交易,这将阻止工作?

我已经验证了我的目标确实是正确的数据库,因为我可以通过另一个页面成功地查询它。

    public static Logger logger = LogManager.GetCurrentClassLogger();

    public static Guid AddPlanItem(PlanItemAddViewModel viewModel, IEnumerable<HttpPostedFileBase> images)
    {
        Guid planIdGUID = Guid.NewGuid();

        using (var context = new ApplicationDbContext())
        {
            using (var dbContextTransaction = context.Database.BeginTransaction())
            {
                try
                {
                    PlanItem planItem = context.Plans.Create();

                    planItem.PlanId = planIdGUID;
                    planItem.CreateDate = DateTime.Now;
                    planItem.PlanIdTitle = viewModel.PlanIdTitle;
                    planItem.PlanTitle = viewModel.PlanTitle;
                    planItem.SolutionTitle = viewModel.SolutionTitle;
                    planItem.ActivityCodeId = viewModel.ActivityCodeId;
                    planItem.RegionId = viewModel.RegionId;
                    planItem.OperatingCenterId = viewModel.OperatingCenterId;
                    planItem.DistrictId = viewModel.DistrictId;
                    planItem.ServiceCenterId = viewModel.ServiceCenterId;
                    planItem.PlannerRACFId = viewModel.PlannerRACFId;
                    planItem.SeverityId = viewModel.SeverityId;
                    planItem.Description = viewModel.Description;
                    planItem.PreviousPlan = viewModel.PreviousPlan;

                    context.Plans.Add(planItem);
                    context.SaveChanges();

                    foreach (HttpPostedFileBase image in images)
                    {
                        var imageSubmit = new PlanItemImage
                        {
                            PlanId = planIdGUID,
                            PlanImageId = Guid.NewGuid(),
                            Image = image.ConvertToByte(),
                            ImageTitle = image.FileName
                        };

                        context.Image.Add(imageSubmit);
                        context.SaveChanges();
                    }

                    dbContextTransaction.Commit();
                }
                catch (Exception ex)
                {
                    logger.Error("Error: " + ex.Message);
                    dbContextTransaction.Rollback();
                }
            }
        }

        return planIdGUID;
    }