Module Road Map

Credit CategoriesAssignment 2 Credit Category 2 

You are able to demonstrate how data may be filtered using Xpath

You are able to demonstrate how an XSLT file may transform XML into another document format e.g. XHTML

Document Transformations

Web Form (ASPX) HTML Form

The Structure of an XML Document - Trees and Nodes

Need a good conceptual model of XML/XSLTError reporting is poorVisual Studio debugger a big help

XML Tree StructureViewed in the browser

Simple XSLT File(EXtensible Stylesheet Language Transformations)

ExamplesTitle/LocalTitle

28 Days LaterTitle/IMDBrating

7.6Title/Genres/Genre

Action

xsl for each loop

Notice how we reference the data

Keeping Track of the Context

28 Days Later28 Days Later28 Days Later7.62002Etc..

. Gives us

When the Context Changes

Action HorrorSci-FiThriller

. Gives us

Losing track of the context is the source of most problems in XSLT!

Instructions and Literals

Instruction(s)

Literals

Output document is a merging of the instructions and literals.

TemplatesRoot template + others

(Like sub main in C)

(similar to a function)

PatternsThe Root Pattern

/Compare the two patterns below…

More Complex Patterns

ExpressionsUsed to perform calculations on a node/data

Sorting Data in a Node

The Key - a pattern that identifies the dataThe Order - may be ascending or descending.