public RecordRepository()
 {
     _recordSet = RecordSet.CreateRecordSet(new string[]
     {
         HttpContext.Current.Request.MapPath(@"~/App_Data/records1.txt"),
         HttpContext.Current.Request.MapPath(@"~/App_Data/records2.txt"),
         HttpContext.Current.Request.MapPath(@"~/App_Data/records3.txt")
     });
 }