public HttpResponseMessage ChangeCommitteFlag(UserChangeCommitteeFlagDto info)
        {
            Result res = _business.ChangeCommitteFlag(info.Username, info.Value);

            if (res.Value == true)
            {
                return(Request.CreateResponse(HttpStatusCode.OK, res.Content));
            }
            else
            {
                return(Request.CreateResponse(HttpStatusCode.PreconditionFailed, res.Content));
            }
        }