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Re: Accessing attributes via XPath

From: Peter Flynn <peter.nosp@-.--------.-->
To: NULL
Date: 7/1/2009 9:36:00 PM

Jeremy wrote:
> Hi folks,
> 
> Just cutting my teeth a bit with MSXML, and came across an issue that
> is confusing me.
> 
> Given the following XML fragment:
> 
> <parent>
>   <child>
>      <grandchild attrib1="test" />
>   </child>
> </parent>
> 
> I have an IXMLDOMNodePtr pointing to <child>, and I want to grab the
> value of attrib1 in <grandchild>.
> 
> I was expecting the XPath to feed to selectNodes() would be
> "grandchild@attrib1", but this causes MSXML to throw an exception
> (with no error info).
> 
> It turns out the correct XPath is "grandchild/@attrib1", and I was
> confused why, since I'm sure I've seen tutorials using the first
> format.

If the address is supposed to be an XPath expression, then the slash is 
mandatory. I haven't seen a different (ie non-XPath) syntax that just 
uses elementname@attribname but someone may well have invented one. If 
you can find the page you think you've seen, it may just be a typo.

//Peter

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