public DeleteStudentPromotion DeleteStudentPromotion(DeleteStudentPromotion obj)
        {
            var returnModel       = new DeleteStudentPromotion();
            var StudentPromotions = _StudentPromotionsRepo.Get(obj.StudentPromotionsId);

            if (StudentPromotions != null)
            {
                _StudentPromotionsRepo.Delete(StudentPromotions);
            }
            return(returnModel);
        }
 public async Task <IActionResult> DeletePromotion(long StudentPromotionsId)
 {
     try
     {
         var model = new DeleteStudentPromotion()
         {
             StudentPromotionsId = StudentPromotionsId
         };
         await Task.Run(() => _StudentPromotionsServ.DeleteStudentPromotion(model));
     }
     catch (Exception)
     {
         return(BadRequest());
     }
     return(RedirectToAction("StudentPromotionsList"));
 }