public ActionResult <BlockPeriodAddViewModel> AddBlockPeriod(BlockPeriodAddViewModel blockPeriodAddViewModel)
        {
            BlockPeriodAddViewModel blockPeriodAdd = new BlockPeriodAddViewModel();

            try
            {
                blockPeriodAdd = _periodService.AddBlockPeriod(blockPeriodAddViewModel);
            }
            catch (Exception es)
            {
                blockPeriodAdd._failure = false;
                blockPeriodAdd._message = es.Message;
            }
            return(blockPeriodAdd);
        }