Performing a “Group By” query in XPath XSL

Question

Given the following XML:

  11 
  

        

Answer 1

To do this in XSLT 1.0, you will have to use a technique called "muenchian grouping". First create a key of the nodes on which you wish to group

Next, you iterate it through all the nodes, but only selecting the ones that happen to be first in the relevant group

Next, you can iterate use the key to iterate over all nodes in the group

Putting this all together gives

In your example, 'intfield' becomes 'numberfield' though. I have kept the name as 'intfield' in the above example.

• fixed typo.