public ActionResult Index(RegionViewModel regionViewModel)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    bool isDuplicate = false;
                    isDuplicate = regionViewModel.CheckDuplicate(regionViewModel);

                    if (isDuplicate)
                    {
                        regionViewModel.GetRegionDetails();
                        ViewBag.Message = "Region Already Exists";
                        return(View("Index", regionViewModel));
                    }
                    else
                    {
                        regionViewModel.Region = regionViewModel.Region == null ? "" : regionViewModel.Region.Trim();
                        regionViewModel.AddRegion(regionViewModel);
                        regionViewModel.GetRegionDetails();
                        ViewBag.Message = "New Region Added Successfully";
                        return(View("Index", regionViewModel));
                    }
                }
                regionViewModel.GetRegionDetails();
                return(View(regionViewModel));
            }
            catch (Exception ex)
            {
                errorlogviewmodel = new ErrorLogViewModel();
                errorlogviewmodel.LogError(ex);
                return(View("Error"));
            }
        }