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Grouping

Grouping is a common problem in XSLT stylesheets: how do you take a list of elements and arrange them into groups. There are two main situations in which you need to do this:

• grouping by content (e.g. group all the people from Nottingham together)
• grouping by position (e.g. group 10 items per list)

Grouping By Content

The most efficient method for grouping large numbers of elements according to their content, be it the value of an attribute, of a subelement, or its textual content, is the Muenchian Method (after Steve Muench, who discovered/developed it).

Here are some posts that give more examples of grouping by content:

Grouping By Position

Here are a couple of posts that illustrate grouping by position:

Links