Beginning XML with DOM and Ajax: From Novice to Professional by Sas Jacobs

By Sas Jacobs

XML has been round for a few years, so what makes this ebook various? good, many of the rivals available in the market are huge tomes; this e-book assumes a unique procedure, exhibiting that you should supply the reader all they should recognize to hit the floor working, with out making them trawl via hundreds of thousands of pages of syntax. The booklet additionally provides the main updated photograph of the topic—XML aid within the most up-to-date internet browsers, developing XML-driven functions utilizing the main types of internet criteria and server-side languages, together with CSS 2.1/3, DOM, XSLT and XPath 2, Hypertext Preprocessor five, ASP.NET 2, and lots of extra. eventually, the booklet presents an creation to Ajax-style programming, that is a vital subject for contemporary internet builders to appreciate. XML is center to Ajax, so an realizing of it's crucial while studying the best way to application Ajax performance. This publication consequently offers a good stepping stone for readers wishing to take this direction.

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Additional info for Beginning XML with DOM and Ajax: From Novice to Professional (Beginning: From Novice to Professional)

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If you’re creating a schema that you might use for several different document instances, it may be more flexible to use global definitions for at least some of your elements. If you always want an element to be referenced by the same name, then define it as an element. Where there’s a chance that elements with different names might be of the same structure, define a data type. For example, say you have a document that contains an address that you use for multiple purposes, such as a postal address, a street address, and a delivery address.

You specify this using If the element can occur exactly once, omit the minOccurs and maxOccurs attributes. The element contains child elements, so it’s a complex type element containing other elements, also in a sequence: The child elements are simple type elements because they contain only text. If they included an attribute, they would automatically be complex type elements, but the only attribute in the document is included in the element.

Setting the elementFormDefault attribute to qualified means that the local elements in the instance document must not be qualified. The attributeFormDefault setting ensures that attributes are treated as belonging to the namespace of their containing element, which is the default for XML. Assigning a Schema to a Document Once you create a schema document, you need to reference it from the instance document so that a validating XML parser can validate the document. You can do this with either the schemaLocation or noNamespaceSchemaLocation attribute.

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