public IActionResult EditManualRoles(CaseLawUnit model)
        {
            SetViewbagManualRoles(model.CaseId);

            if (!ModelState.IsValid)
            {
                return(View(nameof(EditManualRoles), model));
            }

            string _isvalid = IsValidManualRoles(model);

            if (_isvalid != string.Empty)
            {
                ModelState.AddModelError("", _isvalid);
                return(View(nameof(EditManualRoles), model));
            }

            var currentId = model.Id;

            if (service.CaseLawUnit_SaveData(model))
            {
                SetAuditContext(service, SourceTypeSelectVM.CaseLawUnit, model.Id, currentId == 0);
                this.SaveLogOperation(currentId == 0, model.Id);
                SetSuccessMessage(MessageConstant.Values.SaveOK);
                return(RedirectToAction("CasePreview", "Case", new { id = model.CaseId }));
            }
            else
            {
                SetErrorMessage(MessageConstant.Values.SaveFailed);
            }

            return(View(nameof(EditManualRoles), model));
        }