December 2007
Intermediate to advanced
608 pages
13h 22m
English
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Chapter 14. Working with XML
XML, or eXtensible Markup Language, provides an industry-standard method for encoding information so that it is easily understandable by different software applications. It contains data and the description of data, which enables software applications to interpret and process that data.
XML specifications are defined and maintained by the World Wide Web Consortium (W3C). The latest version is XML 1.1 (Second Edition). However, XML 1.0 (currently in its fourth edition) is the most popular version, and is supported by all XML parsers. W3C states that:
You are encouraged to create or generate XML 1.0 documents if you do not need the new features in XML 1.1; XML Parsers are expected to understand both XML 1.0 and XML 1.1.[16]
This chapter will introduce XML 1.0 only, and in fact, will focus on just the most commonly used XML features. I'll introduce you to the XMLDocument and XMLElement classes first, and you'll learn how to create and manipulate XML documents.
Of course, once you have a large document, you'll want to be able to find substrings, and I'll show you two different ways to do that, using XPath and XPath Navigator. XML also forms a key component of the Service Oriented Architecture (SOA), which allows you to access remote objects across applications and platforms. The .NET Framework allows you to serialize your objects as XML, and deserialize them at their destination. I'll cover those methods at the end of the chapter.
XML Basics (A Quick Review) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.