By Sas Jacobs
XML is the lingua franca of the net. All designers and builders operating in an online surroundings want a sound knowing of XML and its function in program improvement. Many software program programs and organisations let for the trade of knowledge utilizing an XML layout. net providers and RSS feeds at the moment are commonplace.
For these operating with Flash and Flex, a radical figuring out of XML is especially very important. XML files are one alternative for the knowledge supplied to SWF purposes. Flash and Flex can load, exhibit, and adjust XML content material. those functions may also ship XML content material to different purposes for updating or to be used in numerous situations.
ActionScript 3.0 brought a few primary adjustments to the best way Flash and Flex purposes paintings with XML. One major swap is that XML is now a local facts style. ActionScript 3.0 additionally brought new sessions and a distinct framework for operating with exterior records. those adjustments are in response to the E4X ECMAScript commonplace, they usually streamline and simplify the method for operating with XML in Flash and Flex.
In starting place XML and E4X for Flash and Flex, Sas Jacobs can provide an creation to XML and E4X. She explores the XML and XMLList sessions and explains E4X expressions, delivering examples for either Flash and Flex. as well as explaining how one can include XML files in Shockwave Flash purposes, Sas indicates you methods particular to Flash and Flex and explores real-world utilization. The publication finishes with case stories. within the first, you are going to the right way to eat and reveal details and photographs from Flickr utilizing Flash. within the moment, you'll paintings with Adobe Kuler in Flex.
Whether you're a dressmaker or developer, this ebook can help you're employed with XML and make the transition from ActionScript 2.0 to ActionScript 3.0. it's going to additionally give you a superb grounding when you are new to Flash and Flex.
Read or Download Foundation XML and E4X for Flash and Flex PDF
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Extra info for Foundation XML and E4X for Flash and Flex
Firefox displays an error when you try to open a document that isn’t well-formed. In this case, the error message shows that the closing element name 8+j]ia: was expected. You can test this with the file ]``naoo[jkp[sahh[bknia`*tih, included with this chapter’s resources. Try opening it in a web browser to see the error. You’ll also see an error if you try to work with a document that isn’t well-formed in a Flash or Flex application. As long as you follow the rules outlined in this section when creating XML content, you’ll generate well-formed XML documents.
Stylus Studio 2008 XML can also check that an XML document is valid against its DTD or XML schema. If you’re checking against a schema, you’ll need to associate the document with the schema first by choosing XML ¢ Associate XML with Schema. Once you’ve created the association, you can test for validity by clicking the button containing the green check on the center window toolbar or by choosing XML ¢ Validate Document. xml is valid in the output section at the bottom of the window. If the document is not valid, you’ll see an error message relating to the invalid content.
It also shows line numbers to the left of the window. Figure 2-9. Viewing an XML document in Dreamweaver As with other types of Dreamweaver files, you can preview an open XML file in a web browser. If you have added a reference to an XSLT stylesheet, previewing in a browser will apply a transformation to the XML document. You can see the effect in Figure 2-10 as Dreamweaver previews the ]``naoo*tih file in Firefox. This XML document doesn’t have an associated XSLT stylesheet. You can also validate an XML document in Dreamweaver using the command File ¢ Validate ¢ As XML.