Re: [mvp-xml-help] DynamicContext.Compile

[Roy C. <so...@ho...>]

Hi Oleg,

Thanks for your reply. I feel kinda stupid, I was indeed missing the 
ExsltContext object. I thought my code broke on the call to Compile(), while 
it was in fact the call to Select(). The reason was obviously the missing 
ExsltContext object.

Regards, Roy


>From: Oleg Tkachenko <ol...@tk...>
>To: Roy Cornelissen <so...@ho...>
>CC: mvp...@li...
>Subject: Re: [mvp-xml-help] DynamicContext.Compile
>Date: Thu, 25 May 2006 23:11:08 +0200
>
>Hmmm, you must be missing something. Here is a working sample:
>
><foo xmlns:b="bar">
>     <b:bar>text</b:bar>
></foo>
>
>XmlDocument doc = new XmlDocument();
>doc.Load("../../XMLFile1.xml");
>string xpath = "/foo/b:bar";
>XPathExpression expr = XPathExpression.Compile(xpath);
>ExsltContext ctx = new ExsltContext(doc.NameTable);
>ctx.AddNamespace("b", "bar");
>expr.SetContext(ctx); 
>Console.WriteLine(doc.CreateNavigator().SelectSingleNode(expr).OuterXml);
>
>--
>Oleg
>
>
>Roy Cornelissen wrote:
>>Hi,
>>
>>I'm in the process of implementing the Mvp.Xml library into my project. 
>>I'm having trouble precompiling xpath expressions that use namespace 
>>prefixes. If I specify the namespace prefix in the xpath expression, I get 
>>the exception "Namespace Manager or XsltContext needed. This query has a 
>>prefix, variable, or user-defined function.". If I leave out the prefix, 
>>the expression does not return the nodes I expect, so I do need to specify 
>>a namespace in my xpath query.
>>
>>Am I overlooking something?
>>
>>Thanks!
>>
>>Regards, Roy Cornelissen
>>
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