October 2002
Intermediate to advanced
720 pages
17h 15m
English
Content preview from Applied XML Programming for Microsoft® .NET
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The .NET XPath Navigation API
The XML DOM support for XPath expressions has a double goal. First, it smooths the transition from MSXML COM code to the .NET Framework. Second, it gives you a built-in and easy-to-use mechanism to search for nodes in a memory-mapped XML document. As mentioned, the core .NET API for processing XPath expressions is built into a tailor-made class named XPathNavigator.
You access the navigator object either from the XmlDocument class or from the newest XPathDocument class. Figure 6-5 illustrates the relationship between the two ways of accessing XPath functions in the .NET Framework.
Figure 6-5. Applications can access XPath through either XmlDocument or XPathDocument. In both cases, the actual query is performed ...
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