public ActionResult CopyDemandBookBatch(string FromGroupId, string TargetGroupId, string jsonArr)
        {
            List <string[]> lst = JsonConvert.DeserializeObject <List <string[]> >(jsonArr);

            foreach (string[] values in lst)
            {
                requirementService.RequirementCopy(values[1], FromGroupId, values[0], TargetGroupId, UserInfo.UserId);
            }

            return(Json(""));
        }