internal bool FColumnElement(XmlElement e)
{
if (_nodeToSchemaMap.GetColumnSchema(e, FIgnoreNamespace(e)) == null)
return false;
if (CountNonNSAttributes(e) > 0)
return false;
for (XmlNode tabNode = e.FirstChild; tabNode != null; tabNode = tabNode.NextSibling)
if (tabNode is XmlElement)
return false;
return true;
}