public HttpResponseMessage GetBidders() { List <sp_getPendingBidders_Result> results = entities.sp_getPendingBidders().ToList(); if (results.Count == 0) { return(Request.CreateErrorResponse(HttpStatusCode.NotFound, "No bidder is waitng for Approval")); } return(Request.CreateResponse <IEnumerable <sp_getPendingBidders_Result> >(HttpStatusCode.OK, results)); }