public DatasetSumGeneralResult(long total, IEnumerable <string> results, External.DataSets.DataSet dataset, TimeSpan searchElapsedTime)
     : base(total, results, true)
 {
     this.Dataset     = dataset;
     this.DataSource  = "Dataset." + this.Dataset.DatasetId;
     this.ElapsedTime = searchElapsedTime;
 }