private void FlushTrailBytes()
{
if (_attributeValue != null)
WriteAttributeText(XmlConverter.Base64Encoding.GetString(_trailBytes, 0, _trailByteCount));
if (!_isXmlnsAttribute)
{
StartContent();
_writer.WriteBase64Text(_trailBytes, _trailByteCount, _trailBytes, 0, 0);
EndContent();
}
_trailByteCount = 0;
}