// GET api/ChallengeTag?tagID={tagID}
        public DataTable Get(string SrtTagsID)
        {
            int[]        IntTagIDArr = SrtTagsID.Split(',').Select(str => Int32.Parse(str)).ToArray();
            ChallengeTag ct          = new ChallengeTag();

            return(ct.getCT(IntTagIDArr));
        }