public JsonResult getCandidateEmailId_byCandidateIds(string candidateIds)
        {
            string        msg         = null;
            List <string> listEmailId = new List <string>();

            try
            {
                listEmailId = _sendEmailServ.getCandidateEmailId_byCandidateIds(candidateIds);
            }
            catch (Exception ex)
            {
                msg = "Error:" + ex.Message;
            }
            return(Json(new { listEmailId = listEmailId, msg = msg }, JsonRequestBehavior.AllowGet));
        }