public List <BookRecDTO> FetchBookData(string resourceName, bool useSampleData)
{
// Use the default value if no value was provided and
// remove the .xml extension if included.
resourceName = NormalizeResourceName(resourceName);
// Open the XML Data Stream for reading.
Stream stream = GetXmlDataStream(resourceName, useSampleData);
// Create an asynchronous task that will...
// parse the XML data file into a list of BookRecDTO objects.
CatalogReader catReader = new CatalogReader();
List <BookRecDTO> result = catReader.FetchBookData(stream);
return(result);
}