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

[Oleg T. <ol...@tk...>]

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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