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Using relevant attribute with a control group

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Dan Godley

Using relevant attribute with a control group

Hi all,

I'm having some trouble getting groups of controls to display properly.

Each group of controls is bound to a nodeset which has its relevant attribute set, e.g.

<xf:bind id="bndShowGrp1Inputs" nodeset="instance('inst_display')/showGrp1Inputs" relevant="instance('inst_display')/showGroup = '1'"/>

<xf:bind id="bndShowGrp2Inputs" nodeset="instance('inst_display')/showGrp2Inputs" relevant="instance('inst_display')/showGroup = '2'"/>

......

<xf:group bind="bndShowGrp1Inputs">
<xf:input bind="bndInput1">
...
</xf:input>
<xf:input bind="bndInput2">
...
</xf:input>
</xf:group>

<xf:group bind="bndShowGrp2Inputs">
<xf:input bind="bndInput3">
...
</xf:input>
<xf:input bind="bndInput4">
...
</xf:input>
</xf:group>

Assuming the value of the node at instance('inst_display')/showGroup is changed to either 1 or 2, I'd expect bndShowGrp1Inputs and bndShowGrp2Inputs to show/hide themselves as appropriate.

Should I be able to do this in Presentation Server? Apart from when the form initialises, I can't seem to get this to work. I can get the same code to work in another XForms engine.

Many thanks, Dan

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Alessandro Vernet

Re: Using relevant attribute with a control group

Administrator

On 7/17/06, [hidden email] <[hidden email]> wrote:
> [...]
> Assuming the value of the node at instance('inst_display')/
> showGroup is changed to either 1 or 2, I'd expect bndShowGrp1Inputs
> and bndShowGrp2Inputs to show/hide themselves as appropriate.
>
> Should I be able to do this in Presentation Server? Apart from
> when the form initialises, I can't seem to get this to work.

Hi Dan,

Yes, this should work just fine, and in fact we have been using
<xforms:group> bound to a node which relevance changes to display/hide
the group in a number of cases. Would you be able to create a
stand-alone XForms file that we can run in the XForms sandbox to
reproduce this?

Alex
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http://www.orbeon.com/blog/

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Dan Godley

RE: Using relevant attribute with a control group

In reply to this post by Dan Godley

Hi Alex,

Thanks for your reply. I did manage to get a simple example of this working in the sandbox. Not sure what the original problem was, but have attached the working code for info anyway.

Cheers, Dan

###########################################

<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xf="http://www.w3.org/2002/xforms">
<head>
<title>Relevant test</title>
<xf:model id="mdl_pages">
<xf:instance id="inst_page_data">
<data xmlns="">
<pages>
<page id="1"/>
<page id="2"/>
<page id="3"/>
<page id="4"/>
</pages>
<currentPage>1</currentPage>
<numPages/>
</data>
</xf:instance>
<xf:bind id="bnd_show_page_1" nodeset="instance('inst_page_data')/pages/page[@id = '1']" relevant="instance('inst_page_data')/currentPage = '1'"/>
<xf:bind id="bnd_show_page_2" nodeset="instance('inst_page_data')/pages/page[@id = '2']" relevant="instance('inst_page_data')/currentPage = '2'"/>
<xf:bind id="bnd_show_page_3" nodeset="instance('inst_page_data')/pages/page[@id = '3']" relevant="instance('inst_page_data')/currentPage = '3'"/>
<xf:bind id="bnd_show_page_4" nodeset="instance('inst_page_data')/pages/page[@id = '4']" relevant="instance('inst_page_data')/currentPage = '4'"/>
<xf:bind nodeset="instance('inst_page_data')/numPages" calculate="count(instance('inst_page_data')/pages/page)"/>
<xf:bind id="bnd_current_page" nodeset="instance('inst_page_data')/currentPage" calculate="xfif(number(.) < 1, '1', xfif(number(.) > ../numPages, ../numPages, .))" readonly="false()"/>

<xf:instance id="inst_button_state">
<data xmlns="">
<showPrev/>
<showNext/>
</data>
</xf:instance>
<xf:bind id="bnd_prev" nodeset="instance('inst_button_state')/showPrev" relevant="instance('inst_page_data')/currentPage > 1" />
<xf:bind id="bnd_next" nodeset="instance('inst_button_state')/showNext" relevant="instance('inst_page_data')/currentPage < instance('inst_page_data')/numPages"/>
</xf:model>
</head>
<body>
<xf:group bind="bnd_show_page_1">
<h3>Page 1</h3>
</xf:group>
<xf:group bind="bnd_show_page_2">
<h3>Page 2</h3>
</xf:group>
<xf:group bind="bnd_show_page_3">
<h3>Page 3</h3>
</xf:group>
<xf:group bind="bnd_show_page_4">
<h3>Page 4</h3>
</xf:group>
<xf:trigger bind="bnd_prev" id="prev">
<xf:label><< Prev</xf:label>
<xf:action ev:event="DOMActivate">
<xf:setvalue bind="bnd_current_page" value=". - 1" />
</xf:action>
</xf:trigger>
<xf:trigger bind="bnd_next" id="next">
<xf:label>Next >></xf:label>
<xf:action ev:event="DOMActivate">
<xf:setvalue bind="bnd_current_page" value=". + 1" />
</xf:action>
</xf:trigger>
</body>
</html>

#################################################################

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Alessandro Vernet
Sent: 21 July 2006 04:59
To: [hidden email]
Subject: Re: [ops-users] Using relevant attribute with a control group

On 7/17/06, [hidden email] <[hidden email]> wrote:
> [...]
> Assuming the value of the node at instance('inst_display')/ showGroup
> is changed to either 1 or 2, I'd expect bndShowGrp1Inputs and
> bndShowGrp2Inputs to show/hide themselves as appropriate.
>
> Should I be able to do this in Presentation Server? Apart from when
> the form initialises, I can't seem to get this to work.

Hi Dan,

Yes, this should work just fine, and in fact we have been using <xforms:group> bound to a node which relevance changes to display/hide the group in a number of cases. Would you be able to create a stand-alone XForms file that we can run in the XForms sandbox to reproduce this?

Alex
--
Blog (XML, Web apps, Open Source):
http://www.orbeon.com/blog/

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