public WaterfallContext LoadWaterfall(int reportDatasetID)
        {
            string contextText = _clientService.GetWaterfallContextByReportDataSetID(reportDatasetID);

            if (!string.IsNullOrWhiteSpace(contextText))
            {
                Waterfall = Newtonsoft.Json.JsonConvert.DeserializeObject <WaterfallContext>(contextText);
            }
            return(Waterfall);
        }