RE: [xsl] Trying to use the SUM function on an attribute

Subject: RE: [xsl] Trying to use the SUM function on an attribute
From: Dimitre Novatchev <dnovatchev@xxxxxxxxx>
Date: Fri, 26 Jan 2001 22:34:44 -0800 (PST)
> var totalVal = xmlToSum.selectSingleNode("sum(//@attr1)") 

This is not going to work -- the XPath expression argument in
selectSingleNode() must evaluate to a node(-set). And what will be
returned in this case will be a scalar (a string containing a number or

One way to obtain a scalar value from an XPath expression is when a
client uses the transformNode() method that applies to the source a
generic template, which outputs (xsl:value-of) the value of an XPath
expression passed as a parameter.

Dimitre Novatchev.

> > I would like to do the following in JScript:
> > 
> > var totalVal = xmlToSum.selectSingleNode("sum(///@attr1")
> > 
> > But when I try to open this page, I get an error "Expected 
> > Identifier".
> > 
> > What would be the proper syntax.
> >
> var totalVal = xmlToSum.selectSingleNode("sum(//@attr1)") 
> Mike Kay

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