public ReturnMessageModel CompanyIns(CompanyModel model) { ReturnMessageModel result = new ReturnMessageModel(); ObjectParameter returnMessage = new ObjectParameter("ReturnMessage", typeof(String)); using (PayrollEntities db = new PayrollEntities()) { db.SpCompanyIns(model.CompanyId, model.CompanyName, model.UserId, returnMessage); result.ReturnMessage = returnMessage.Value.ToString(); return(result); } }