I tried your suggestion. For this XML document:



<Document>

<Row>

<Cell>

<Data>aviation</Data>

</Cell>

<Cell/>

</Row>

</Document>



I used Oxygen XML to evaluate this XPath expression on the XML document:



/Document/Row[Cell[1]/Data eq 'aviation'][Cell[2]/Data = '']



Oxygen XML reported:



The XPath query returned no results.



Thoughts?

Don't know where I went wrong, will look later. Perhaps go with Mukul's
suggestions.