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  • alexei 21 posts 40 karma points
    Nov 03, 2009 @ 00:10
    alexei
    0

    intersection

    Tell me, please, somebody what to do with this  error

     

    Error occured System.ArgumentNullException: Value cannot be null. 

     

    Parameter name: type 
    at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) 
    at umbraco.presentation.xslt.Exslt.ExsltCommon.ExsltNodeListToXPathNodeIterator(ExsltNodeList list) 
    at umbraco.presentation.xslt.Exslt.ExsltSets.intersection(XPathNodeIterator nodeset1, XPathNodeIterator nodeset2)

     

     

    <xsl:copy-of select="Exslt.ExsltSets:intersection('1224','1223')"/>
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  • Dirk De Grave 4537 posts 6006 karma points MVP 3x admin c-trib
    Nov 03, 2009 @ 08:56
    Dirk De Grave
    0

    Alexei,

    the intersection method accepts XPathNodeIterator objects for both parameters, yours are just strings.

     

    Cheers,

    /Dirk

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  • alexei 21 posts 40 karma points
    Nov 03, 2009 @ 20:06
    alexei
    0

    Dirk, is it contains() the only choice for me to compare two strings in xslt inside Umbraco? 

    Where can I get information about this functions except wiki?

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  • Dirk De Grave 4537 posts 6006 karma points MVP 3x admin c-trib
    Nov 04, 2009 @ 08:52
    Dirk De Grave
    1

    Alexei,

    Depends on what you define as "comparing two strings"? Anyway, if you can't find an existing library function that does what you need, you could either write a small inline script or an xslt extension. Can't find useful resource on the wiki regarding xslt extenions, but you may find a howto here.

     

    Hope this helps.

    Regards,

    /Dirk

     

     

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  • alexei 21 posts 40 karma points
    Nov 04, 2009 @ 14:47
    alexei
    0

    Dirk, thanks I'll try to study your links and suggestions

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