public void StopPrintAsync(PrintId printId, object asyncState)
 {
     ReportService.StopPrint(printId);
     RaiseOperationCompletedEvent(StopPrintCompleted, asyncState);
 }
 public void GetPrintStatusAsync(PrintId printId, object asyncState)
 {
     RaiseScalarOperationCompletedEvent(GetPrintStatusCompleted, ReportService.GetPrintStatus(printId), asyncState);
 }