public bool DeleteStackEventType(StackEventType entity)
 {
     if(entity==null) return false;
        _unitOfWork.StackEventTypeRepository.Delete(entity);
        _unitOfWork.Save();
        return true;
 }
 public bool EditStackEventType(StackEventType entity)
 {
     _unitOfWork.StackEventTypeRepository.Edit(entity);
        _unitOfWork.Save();
        return true;
 }