public DTOResponse(DTOResponseError error, DTOResponseData data, DTOQueryPerformance performance)
     : this(error, data)
 {
     this.performance = performance;
 }
 public DTOResponse(DTOResponseError error, List <object> datarows)
 {
     this.error = error;
     data       = new DTOResponseData(datarows);
 }
 public DTOResponse(DTOResponseError error, DTOResponseData data)
 {
     this.data  = data;
     this.error = error;
 }