RE: [xsl] Question about MS setProperty method

[Chuck White <chuckwh@xxxxxxxxxxx>]

That's great, thanks Marrow. For the long term that opens up a whole new
world for the app in question!

Cheers,

Chuck White
-------------------------
Author, Mastering XSLT, Sybex Books
Co-Author, Mastering XML Premium Edition, Sybex Books
http://www.javertising.com/webtech/

> Hi Chuck,
> 
> Any namespaces that you want to select against using XPath (in
> selectSingleNode or selectNodes) have to be declared to the DOM (even
> the default namespaces used in the XML).
> 
> To declare the namespaces to the DOM you need to use the setProperty
> method again, e.g.
> 
> MyDOM.setProperty("SelectionNamespaces","xmlns:my='urn:whatever'")
> 
> (where the URI matches the one in the input XML).
> 
> If you have default namespaces in the XML you need to give them an
> arbitrary prefix when declaring the namespace to the DOM.
> 
> 
> Hope this helps
> Marrow, Microsoft XML MVP
> http://www.marrowsoft.com - home of Xselerator (XSLT IDE and debugger)
> http://www.topxml.com/Xselerator
> 
> 
> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Chuck
White
> Sent: 23 October 2002 15:37
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Question about MS setProperty method
> 
> 
> My apologies in advance for this vendor-specific question, but this is
> really the best place to ask.
> 
> In creating a client-side web app that calls templates dynamically, I
> have found that I can successfully change the name of a called
template
> dynamically, but I have to use a match pattern in the selectSingleNode
> method for some reason. If I try to use the setProperty method to set
> the language to XPath, I get an error message saying "Reference to
> undeclared namespace prefix xsl"
> 
> However, if I leave it off and go with the default language (XSL
> Patterns, according to the MSDN site), it works fine.
> 
> So this works fine:
> 
> <script language="JScript">
> 	function chngNode(xPath, xValue) {
>     xmlDoc = document.XMLDocument;
> 	xslDoc = document.XSLDocument;
>     var matchString = xslDoc.selectSingleNode(xPath);
>     matchString.text = xValue;
> 
>     output.innerHTML = xmlDoc.documentElement.transformNode(xslDoc);
> 
> 	//This resets the call-template name to "content"
> 	//Otherwise, the preceding change
> 	// kills it, and the script looks for it,
> 	// so leaving it off results in an error
>     matchString.text = "content";
> 
> }
> 	 </script>
> 
> But this doesn't:
> 
> <script language="JScript">
> 	function chngNode(xPath, xValue) {
>     xmlDoc = document.XMLDocument;
> 	xslDoc = document.XSLDocument;
> // this next line is the offendor
> // and results in the namespace error
> 	xslDoc.setProperty("SelectionLanguage", "XPath");
>     var matchString = xslDoc.selectSingleNode(xPath);
>     matchString.text = xValue;
> 
>     output.innerHTML = xmlDoc.documentElement.transformNode(xslDoc);
> 
> 	//This resets the call-template name to "content"
> 	//Otherwise, the preceding change
> 	// kills it, and the script looks for it,
> 	// so leaving it off results in an error
>     matchString.text = "content";
> 
> }
> 	 </script>
> 
> Anyone out there understand what is happening under the hood to make
the
> second fail? It doesn't matter for the app I'm working on, since it
> works, but being relegated to selecting only patterns makes it harder
to
> pass parameters client-side when complex interactions are involved.
> 
> My guess is that somehow since you're changing the language to XPath,
> you're basically removing the wired-in xsl namespace, but that's
purely
> a guess.
> 
> Thanks in advance!
> 
> Cheers,
> 
> Chuck White
> -------------------------
> Author, Mastering XSLT, Sybex Books
> Co-Author, Mastering XML Premium Edition, Sybex Books
> http://www.javertising.com/webtech/
> 
> 
> 
> 
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> 
> 
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