Understanding how Java Script and XML work together is a preview of the direction of the W3C DOM and the future of Java Script.To that end, this sample chapter describes "the XML Mystique," defines XML, and explains how to reading and show XML data with Java Script.NOTE In this chapter, I've assumed that you're already familiar with the basics of XML, such as elements and attributes.If you need a refresher course on XML basics, refer to Appendix B, "XML Standards and Syntax." In this section, you'll learn how to extract information from an XML file.Xml Import Service is responsible for watching a given directory on the file system for XML document drops.This task is accomplished using the File System Watcher class in the System. Once an XML file is detected in the watch folder, it needs to be validated using the Xml Validator class I'll describe in this article.The e Xtensible Markup Language (XML) is one of those languages that you hear a lot about, and generally in the superlative, but not too many people are exactly sure what it is.
By Dan Wahlin Validating XML is important any time the structure or data contained within an XML document must follow a predefined format for an application to use it.
In this article, I'll show you how to write a reusable XML-validation class you can use to validate XML documents against DTDs as well as XDR and XSD schemas. NET application that requires XML document-validation capabilities.
Once I've gone over the details of the class (named Xml Validator), I'll show you how to plug it into the Xml Import Service Windows service - detailed in my previous article entitled Improve Data Exchange - to validate "dropped" XML documents. I'll start with a brief overview of the Xml Import Service Windows service's functionality here in case you haven't read my previous article.
I'll start by showing you how you can use the Xml Reader object to move through an XML file, extracting information as you go.
Then you'll see how other objects, including the Xml Node and Xml Document objects, provide a more structured view of an XML file.