public function continueUpload($uploadId,$fileOffset,$content)
    {
        $returnValue = new ClientResult();
        $qry = new InvokePostMethodQuery($this->getResourcePath(),
            "ContinueUpload",
            array('uploadId' => $uploadId->toString(),'fileOffset' => $fileOffset),
            $content);
        $this->getContext()->addQuery($qry,$returnValue);
        return $returnValue;
    }