Re: [Xsltforms-support] Binding to optional element

[Klotz, L. <Lei...@xe...>]

You might be able to use the relevance-with-submission-flag hack:

<bind nodeset="/root/format" relevant="instance('state')/aboutToSubmit = 'false' or . != ''" /> 
<instance id="state"><data xmlns=""><aboutToSubmit>false</aboutToSubmit></instance>
<submit submission="save">
 <setvalue ev:event="DOMActivate" ref="instance('state')/aboutToSubmit">true</setvalue>
</submit>
<submission id="save">
  <setvalue ev:event="xforms-submit-done" ref="instance('state')/aboutToSubmit">false</setvalue>
  <setvalue ev:event="xforms-submit-error" ref="instance('state')/aboutToSubmit">false</setvalue>
</submit>

-----Original Message-----
From: Micah Dubinko [mailto:Mic...@ma...] 
Sent: Tuesday, January 19, 2010 11:58 AM
To: xsl...@li...
Subject: [Xsltforms-support] Binding to optional element

Hey everyone,

This was difficult to do in XForms 1.0. What's the latest state of the art?

Say I have an XML instance like this:
<root>
   <format>xml</format>
</root>

Possible values for the format element are "xml", "text", "binary", or a default setting, indicated by a complete absence of the <format> element. I'd like this to attach to a select1 with four choices:

<xf:select1 ref="format">...

* xml
* text
* binary
* default

Where the first three set the value of the <format> element, and the fourth omits the element altogether. In XForms 1.0, the difficulty comes from binding to a nonexistent element. Are there features from 1.1, 1.2, or XSLTForms that make this case easier? Anyone have an example?

Thanks! -m


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