Selecting Comments by their inner xml in xpath/xsl

Given the following xml document

<root>
   <childnode0/>
   <childnode2/>
   <!--Comment1-->
   <childnode3/>
   <childnode4/>
   <!--Comment2-->
</root>

I know the xpath to select all the 开发者_运维技巧comments at a particular level in xsl

string xPath = "/root/comment()";

However i'd like to select a comment where the inner xml is "Comment2".

Any ideas?

Thanks

Dave

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This

/root/comment()[.='Comment2']

seems to work.

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maybe this would work: /root/comment()[2]