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XML/XPath: Difference between revisions
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==[[C#]]==
XmlReader XReader;
// Either read the xml from a string ...
XReader = XmlReader.Create(new StringReader("<inventory title=... </inventory>"));▼
// ... or read it from the file system.▼
▲XReader = XmlReader.Create(new StringReader("<inventory title=... </inventory>"));
XReader = XmlReader.Create("xmlfile.xml");▼
// Create a XPathDocument object (which implements the IXPathNavigable interface)▼
▲// ... or read it from the file system.
// which is optimized for XPath operation. (very fast).▼
IXPathNavigable XDocument = new XPathDocument(XReader);▼
// Create a Navigator to navigate through the document.▼
▲XReader = XmlReader.Create("xmlfile.xml");
XPathNavigator Nav = XDocument.CreateNavigator();▼
Nav = Nav.SelectSingleNode("//item");▼
▲// Create a XPathDocument object (which implements the IXPathNavigable interface)
// Move to the first element of the selection. (if available).▼
▲// which is optimized for XPath operation. (very fast).
if(Nav.MoveToFirst())▼
Console.WriteLine(Nav.OuterXml); // The outer xml of the first item element.▼
// Get an iterator to loop over multiple selected nodes.▼
▲IXPathNavigable XDocument = new XPathDocument(XReader);
XPathNodeIterator Iterator = XDocument.CreateNavigator().Select("//price");▼
while (Iterator.MoveNext())▼
▲// Create a Navigator to navigate through the document.
▲XPathNavigator Nav = XDocument.CreateNavigator();
Iterator = XDocument.CreateNavigator().Select("//name");▼
▲Nav = Nav.SelectSingleNode("//item");
// Use a generic list.▼
▲// Move to the first element of the selection. (if available).
List<string> NodesValues = new List<string>();▼
▲if(Nav.MoveToFirst())
▲ Console.WriteLine(Nav.OuterXml); // The outer xml of the first item element.
while (Iterator.MoveNext())▼
▲// Get an iterator to loop over multiple selected nodes.
NodesValues.Add(Iterator.Current.Value);
▲XPathNodeIterator Iterator = XDocument.CreateNavigator().Select("//price");
// Convert the generic list to an array and output the count of items.▼
▲while (Iterator.MoveNext())
Console.WriteLine(
▲Iterator = XDocument.CreateNavigator().Select("//name");
▲// Use a generic list.
▲List<string> NodesValues = new List<string>();
▲while (Iterator.MoveNext())
▲ NodesValues.Add(Iterator.Current.Value);
▲// Convert the generic list to an array and output the count of items.
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