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Re: how to increment a variable in a for-each loop
- From: yan bai <bytj at yahoo dot com>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Wed, 23 Jan 2002 15:14:12 -0800 (PST)
- Subject: Re: [xsl] how to increment a variable in a for-each loop
- Reply-to: xsl-list at lists dot mulberrytech dot com
I have a code snippet as below:
<xsl:template match="*" mode="diff_cols">
<xsl:for-each select=".">
<xsl:if test="position() mod 2 = 1">
<fo:table-cell background-color="red">
<fo:block><xsl:value-of select="."/></fo:block>
</fo:table-cell>
</xsl:if>
<xsl:if test="position() mod 2 = 0">
<fo:table-cell background-color="blue">
<fo:block><xsl:value-of
select="."/></fo:block>
</fo:table-cell>
</xsl:if>
</xsl:for-each>
</xsl:template>
Unfortunately, it did not work. The background color
in all columns is red.
Can you help to debug?
Yan
--- David Carlisle <davidc@nag.co.uk> wrote:
> > I wonder if any one knows how to increment a
> variable
> > value in a for-each loop just like in other
> > programming languages.
>
> As is the case with other declarative languages, you
> can not change the
> value of a variable once it is bound.
>
> > I need to check this value so
> > that I can change the background color for every
> other
> > column in a table.
>
> This is a FAQ (an an example in the spec) just use
> the value of
> position() mod 2
> will will be either 0 or 1 as you go through the
> loop.
>
> David
>
>
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