public HttpResponseMessage get_master_solutions(string userid)
        {
            List <SolutionCategory> _SolutionCategory = ObfServices.get_master_solutions(userid);

            if (_SolutionCategory != null)
            {
                if (_SolutionCategory.Count != 0)
                {
                    return(Request.CreateResponse(HttpStatusCode.OK, JsonConvert.SerializeObject(_SolutionCategory)));
                }
                else
                {
                    result = new ReponseMessage(MsgNo: HttpStatusCode.BadRequest.ToCode(), MsgType: MsgTypeEnum.E.ToString(), Message: "Object is null");
                    return(Request.CreateResponse(HttpStatusCode.BadRequest, result));
                }
            }
            else
            {
                result = new ReponseMessage(MsgNo: HttpStatusCode.BadRequest.ToCode(), MsgType: MsgTypeEnum.E.ToString(), Message: "Object is null");
                return(Request.CreateResponse(HttpStatusCode.BadRequest, result));
            }
        }