Parse XML Documents Efficiently

Description:The .NET platform offers several APIs you can use to parse XML documents, including forward-only, DOM, XPath, and XML serialization APIs. Each API has a distinct set of strengths and weaknesses that you should understand before starting any project that involves XML. I'll examine the API exposed by the XPathNavigator class located within the System.Xml.XPath namespace. XPathNavigator isn't as fast as the forward-only API provided by the XmlTextReader or as full-featured as the DOM, but it can be quite useful in applications that need the ability to traverse an XML document's hierarchy along a variety of axes from descendant to child to ancestor.