My guess would be that the mode="helper" template is being called from
somewhere other than the apply-templates call you are showing us.
Without a complete stylesheet, it's impossible to verify that.
Incidentally, if the input is as you show it, then the first
<xsl:sequence> doesn't select anything, and neither does the select in
the with-param (or rather, it selects an empty sequence, which shouldn't
in itself violate the required="yes" requirement.)
Michael Kay
Saxonica
On 18/10/2011 16:17, Merrilees, David wrote:
Hi
I have an XSLT problem I don't understand. I pass a value in a parameter to a
template like so:
<xsl:template match="/" as="element()">
<div id="languageOption">
<xsl:sequence select="model:model/model:LanguageOptions" />
<xsl:apply-templates select="f:action-form('fLanguage', 'Set', 'Language',
'post')" mode="helper">
<xsl:with-param name="language-options"
select="model:model/model:LanguageOptions" />
</xsl:apply-templates>
</div>
</xsl:template>
Which is matched by this template:
<xsl:template mode="helper" match="form[@id = 'fLanguage']">
<xsl:param name="language-options" required="yes"/>
</xsl:template>
and I get the error: 'No value supplied for required parameter $language-options'. Problem is,
if I remove the required attribute, the line '<xsl:sequence
select="model:model/model:LanguageOptions" />' works fine.
Input XML looks like this:
<model:LanguageOptions>
<model:SelectListItem>
<model:Selected>false</model:Selected>
<model:Text>Česky</model:Text>
<model:Value>cs-CZ</model:Value>
</model:SelectListItem>
<model:SelectListItem>
<model:Selected>true</model:Selected>
<model:Text>English</model:Text>
<model:Value>en-GB</model:Value>
</model:SelectListItem>
</model:LanguageOptions>
Any bright ideas?
Thanks
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