Getting the xpath for a specific node in a xmldocument

  • Thread starter Thread starter Paw Pedersen
  • Start date Start date
P

Paw Pedersen

When you are "working" on a specific node from a XmlDocument instance, is it
possible to get the full xpath to this node?

Regards Paw
 
PAW,

I can not understand what you looking for but does a portion of the code
below address answer your question?


private const String localURL =
"http://localhost/quickstart/howto/samples/Xml/QueryXmlDocumentXPath/cs/book
s.xml";

public static void Main()
{
QueryXmlDocumentXPathSample myQueryXmlDocumentXPathSample = new
QueryXmlDocumentXPathSample();
myQueryXmlDocumentXPathSample.Run(localURL);
}

public void Run(String args)
{
Console.WriteLine("XPath Test started ...");

XPathDocument myXPathDocument = new XPathDocument(args);
XPathNavigator myXPathNavigator = myXPathDocument.CreateNavigator();

// Get all the book prices
XPathQuery(myXPathNavigator, "descendant::book/price");

// Get the ISBN of the last book
XPathQuery(myXPathNavigator, "bookstore/book[3]/@ISBN");
}

private void XPathQuery(XPathNavigator myXPathNavigator, String xpathexpr )
{
try
{
Console.WriteLine("XPath query: " + xpathexpr);

// Create a node interator to select nodes and move through them
(read-only)
XPathNodeIterator myXPathNodeIterator = myXPathNavigator.Select
(xpathexpr);

while (myXPathNodeIterator.MoveNext())
{
Console.WriteLine("<" + myXPathNodeIterator.Current.Name + "> "
+ myXPathNodeIterator.Current.Value);
}
Console.WriteLine();
}
catch (Exception e)
{
Console.WriteLine ("Exception: {0}", e.ToString());
}
}



--------------------
From: "Paw Pedersen" <[email protected]>
Subject: Getting the xpath for a specific node in a xmldocument
Date: Sun, 31 Oct 2004 16:59:25 +0100
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When you are "working" on a specific node from a XmlDocument instance, is it
possible to get the full xpath to this node?

Regards Paw
Click to expand...

{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fprq2\fcharset0
MS Sans Serif;}{\f1\fswiss\fcharset0 Arial;}}
{\*\generator Msftedit 5.41.21.2500;}\viewkind4\uc1\pard\f0\fs20 Cheers,\par
\par
johnKn [MS-SDK]\par
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Why not write a function that walks the ancestors, checking each ancestor
the for the position in the collection and building a string from that
point?

That should be doable - then again, XPaths can be made i many different ways
but I guess you were looking for the fastest, right?
 
Thank you,
I will try that. I had just hoped there was a build in function for that.

Regards Paw
 
Hello!

I haven't seen such functionality from the core .NET framework, but that
doesn't necessarily mean it's not there =o)

I would google a little around or just roll the code. It's a nice little
project actually! Let's see what you come up with =o)
 
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