Re: [Xsltforms-support] multiple "calculate" on the same bind

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Hello Peter,

To calculate separate counts, you need as many nodes as counts as you 
want. You could use an attribute to distinguish from colour=white or 
colour=black then the calculate expression will be evaluated according 
to this value.

<html xmlns="http://www.w3.org/1999/xhtml" 
xmlns:xf="http://www.w3.org/2002/xforms">
     <head>
         <title>Count colours</title>
         <xf:model>
             <xf:instance>
                 <items xmlns="">
                     <item>
                         <colour>black</colour>
                     </item>
                     <item>
                         <colour>black</colour>
                     </item>
                     <item>
                         <colour>white</colour>
                     </item>
                     <count colour="black"/>
                     <count colour="white"/>
                 </items>
             </xf:instance>
             <xf:bind nodeset="count" calculate="count(../item[colour = 
current()/@colour])"/>
         </xf:model>
     </head>
     <body>
         <h1>Count colors</h1>
         <xf:repeat nodeset="count">
             <xf:output value="@colour">
                 <xf:label>Colour: </xf:label>
             </xf:output>
             &#160;
             <xf:output value=".">
                 <xf:label>Count: </xf:label>
             </xf:output>
         </xf:repeat>
     </body>
</html>

Is it what you want to do?

Thanks!

-Alain

Le 17/09/2012 20:04, peter winstanley a écrit :
> Hello List
>
> This is probably a trivial question, so apologies in advance.
>
> I have an xform for which I want to calculate two or more seperate 
> counts [ e.g. count of nodes where colour=white and another count of 
> the same instance where colour=black]
>
> AFAIK, I can only have one 'calculate' per instance/nodeset.  {I would 
> appreciate clarification here}, so the only way that I have been able 
> to do this is to have the same XML instance in two separate models and 
> to have one bind and calculate in one model and the other bind and 
> calculate in the other model.
>
> How should I really do this?
>
> Thanks
>
> Peter
>