private void onCatalogItemsByCategoryError(GetCatalogCategoryOperation operation, HttpResponse response)
 {
     CatalogServiceEvents.CatalogItemsByCategoryErrorEvent evt = new CatalogServiceEvents.CatalogItemsByCategoryErrorEvent(response);
     Service.Get <EventDispatcher>().DispatchEvent(evt);
 }
 private bool onCatalogItemsByCategoryErrorEvent(CatalogServiceEvents.CatalogItemsByCategoryErrorEvent evt)
 {
     OnRetreiveItemsError();
     return(false);
 }