public List <CreatedFeedback> GetFeedbacksByGroupId(string groupid)
        {
            try
            {
                FeedbackBL feedbackBl = new FeedbackBL();

                return(feedbackBl.GetFeedbacksByGroupId(groupid));
            }
            catch (Exception e)
            {
                WebOperationContext.Current.OutgoingResponse.StatusCode        = HttpStatusCode.PreconditionFailed;
                WebOperationContext.Current.OutgoingResponse.StatusDescription = e.Message;
                BusinessLogic.Common.Common common = new BusinessLogic.Common.Common();
                common.CreateErrorLog(0, "GetFeedbacksByGroupId", e.Message, 0);
            }
            return(null);
        }