Xpath query to select node when attribute does not exist? [closed]

Posted by Antoine on Stack Overflow See other posts from Stack Overflow or by Antoine
Published on 2008-12-12T14:45:13Z Indexed on 2010/05/11 4:04 UTC
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xpath

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attributes

I want to select nodes for which a specific attribute does not exist. I've tried the Not() function, but it doesn't work. Is there a way for this?

Example: The following Xpath query:

group/msg[not(@owner)]

Should retrieve the first node but not the 2nd one. However, both SketchPath (tool to test Xpath queries) and my C# code consider that the 2 nodes are ok.

<group>
    <msg id="EVENTDATA_CCFLOADED_XMLCONTEXT"  numericId="14026"  translate="False"  topicId="302"  status="translated" >
        <text>Context</text>
        <comment></comment>
    </msg>
    <msg id="EVENTDATA_CCFLOADED_XMLCONTEXT_HELP"  numericId="14027"  translate="False"  topicId="302"  status="translated"  owner="EVENTDATA_CCFLOADED_XMLCONTEXT" >
        <text>Provides the new data displayed in the Object.</text>
        <comment></comment>
    </msg>
</group>

In fact the Not() function works correctly, it's just that I had other conditions and parentheses weren't set correctly. errare humanum est.

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