Re: [Xsltforms-support] Label element in XForms itemset

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Tim,

In XForms 1.1, at 
https://www.w3.org/TR/xforms11/#ui-selection-commonelems-itemset, "The 
node-set that holds the available choices is specified via the Node Set 
Binding.".

In XForms 2.0, at 
https://www.w3.org/community/xformsusers/wiki/XForms_2.0#The_item_Element, 
"The sequence that holds the available choices is specified via the 
Sequence Binding.".

So, xf:itemset/xf:label/xf:output/@value is not valid XForms from my 
point of view.

With XPath 2.0 at least, xf:itemset/xf:label/@ref="title/substring(., 1, 
50)" would generate the correct sequence for your example.

Sorry but Fleur engine is not yet supported in XSLTForms...

--Alain

Le 04/10/2018 à 00:25, Tim Thompson a écrit :
> Alain,
>
> I would like to use xf:output/@value with an XPath expression to 
> generate the contents of an xf:itemset label inside an xf:select1. 
> This should be valid in XForms, unless I am mistaken. However, in 
> XSLTForms 1.0, I get an error when I try to do this:
>
> TypeError: Cannot read property 'xfElement' of null
>     at XsltForms_output.XsltForms_element.init (xsltforms.js:9319)
>     at new XsltForms_output (xsltforms.js:10565)
>     at xsltforms_initImpl (itemset-label-test.xhtml:42)
>     at xsltforms_init (itemset-label-test.xhtml:76)
>
> See attached form and data file (also pasted below) to reproduce the 
> issue. Thanks in advance.
>
> Form:
>
> <?xml-stylesheet href="xsltforms/build/xsltforms.xsl" type="text/xsl"?>
> <?xsltforms-options debug="yes"?>
> <?css-conversion no?>
> <html xmlns="http://www.w3.org/1999/xhtml" 
> xmlns:xf="http://www.w3.org/2002/xforms">
>    <head>
>       <title>Itemset test</title>
>       <meta http-equiv="Content-Type" content="text/html; 
> charset=utf-8" />
>
> <xf:model>
>          <xf:instance>
>             <data xmlns="">
>                <current/>
>             </data>
>          </xf:instance>
>       </xf:model>
>
>       <xf:model id="entries">
>          <xf:instance src="entries.xml"/>
>       </xf:model>
>
>    </head>
>    <body>
>       <div class="container-fluid wrapper">
>          <xf:select1 ref="/data/current" appearance="minimal" 
> incremental="true">
>             <xf:label>Select a title to compare: </xf:label>
>             <xf:itemset model="entries" ref="/data/entry">
>                <!-- Works with xf:label/@ref -->
>                <!-- <xf:label ref="title"/> -->
>                <!-- But not with nested xf:label/xf:output/@value -->
>                <xf:label>
>                   <xf:output value="substring(title, 1, 50)"/>
>                </xf:label>
>                <xf:value ref="identifier"/>
>             </xf:itemset>
>          </xf:select1>
>          <xf:output ref="/data/current">
>             <xf:label>Current title: </xf:label>
>          </xf:output>
>       </div>
>       <br />
>    </body>
> </html>
>
> Data:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <data>
>     <entry>
> <identifier>2017387103</identifier>
>         <title>Una famiglia tra Siena e l'Europa : i Montucci, 
> 1762-1877 /famiglia tra Siena e l'Europa : i Montucc...</title>
>     </entry>
>     <entry>
> <identifier>2017452585</identifier>
>         <title>Tipologie e modalità della mediazione nella Grecia 
> antica : le fonti letterarie /Tipologie e modalit...</title>
>     </entry>
>     <entry>
> <identifier>2017452511</identifier>
>         <title>Identità sotto chiave : lingua e stile nel teatro di 
> Saverio La Ruina /Identità sotto chiave : lingu...</title>
>     </entry>
> </data>
>
>
> Best regards,
> Tim
>
> --
> Tim A. Thompson
> Discovery Metadata Librarian
> Yale University Library
>
>
>
>
>
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