How to select the grandparent of a node using xslt

Question

I\'m in a situation where I can only test for the child node, but I have to apply tags to the grandparent of this child node.

I\'ve tried using:

Answer 1

I've tried using:

and:

But neither works.

Certainly it will not "work", because the instruction doesn't have a select attribute!

You may pass parameters using children of the instruction, like this:

For the select attribute of the Use:

For a real grandparent:

../..

for the closest ancestor element with name someName:

ancestor::someName[1]

for the closest ancestor element with name contained in the variable $ancName:

ancestor::*[name()=$ancName][1]