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Exception Details:
System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 60: myXslTrans.Transform(myXPathDoc, null, writer, null);
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.MergeFilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.OrQuery.SetXsltContext(XsltContext context)
System.Xml.XPath.MethodOperand.SetXsltContext(XsltContext context)
System.Xml.XPath.LogicalExpr.SetXsltContext(XsltContext context)
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.MergeFilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.CompiledXpathExpr.SetContext(XmlNamespaceManager nsManager)
System.Xml.Xsl.Processor.GetCompiledQuery(Int32 key)
System.Xml.Xsl.Processor.StartQuery(XPathNavigator context, Int32 key)
System.Xml.Xsl.ForEachAction.Execute(Processor processor, ActionFrame frame)
System.Xml.Xsl.ActionFrame.Execute(Processor processor)
System.Xml.Xsl.Processor.Execute()
System.Xml.Xsl.XslTransform.Transform(XPathNavigator input, XsltArgumentList args, XmlWriter output, XmlResolver resolver)
System.Xml.Xsl.XslTransform.Transform(IXPathNavigable input, XsltArgumentList args, XmlWriter output, XmlResolver resolver)
com.tetrapak.gts.ctip.tpop.mm_main_v2.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\mm_main_v2.aspx.cs:60
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain()
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Re: [xsl] Re: [xslt transform & grouping] Using the Muenchian Method?
Subject: Re: [xsl] Re: [xslt transform & grouping] Using the Muenchian Method? From: "Michael PG" <xrow@xxxxxxx> Date: Wed, 06 Oct 2004 09:12:46 +0000 |
Vendor: Microsoft Vendor URL: http://www.microsoft.com XSLT Version: 1
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Exception Details:
System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 60: myXslTrans.Transform(myXPathDoc, null, writer, null);
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.MergeFilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.OrQuery.SetXsltContext(XsltContext context)
System.Xml.XPath.MethodOperand.SetXsltContext(XsltContext context)
System.Xml.XPath.LogicalExpr.SetXsltContext(XsltContext context)
System.Xml.XPath.FilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.MergeFilterQuery.SetXsltContext(XsltContext input)
System.Xml.XPath.CompiledXpathExpr.SetContext(XmlNamespaceManager nsManager)
System.Xml.Xsl.Processor.GetCompiledQuery(Int32 key)
System.Xml.Xsl.Processor.StartQuery(XPathNavigator context, Int32 key)
System.Xml.Xsl.ForEachAction.Execute(Processor processor, ActionFrame frame)
System.Xml.Xsl.ActionFrame.Execute(Processor processor)
System.Xml.Xsl.Processor.Execute()
System.Xml.Xsl.XslTransform.Transform(XPathNavigator input, XsltArgumentList args, XmlWriter output, XmlResolver resolver)
System.Xml.Xsl.XslTransform.Transform(IXPathNavigable input, XsltArgumentList args, XmlWriter output, XmlResolver resolver)
com.tetrapak.gts.ctip.tpop.mm_main_v2.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\mm_main_v2.aspx.cs:60
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain()
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Posting the exact exception message and the version of your processor would have been much more helpful.
Wolfgang
Michael PG wrote:
| I don't think that's there'a an bug in msxml. | | -M | | |> From: "Werner, Wolfgang" <mail@xxxxxxxxxxxxxxxxxxx> |> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx |> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx |> Subject: Re: [xsl] Re: [xslt transform & grouping] Using the Muenchian |> Method? |> Date: Wed, 06 Oct 2004 09:57:04 +0200 |> | xsltproc, XMLSpy's internal processor and msxml 3.0 yield the following | result (differing only in whitespace) using the files in your last mail: | <Documents> | ~ <Document name="sub"/> | ~ <Document name="main"> | ~ <Article title="1.2" info="main" filter="food"/> | ~ <Article title="2.2" info="main" filter="food"/> | ~ </Document> | </Documents> | | So perhaps it's a bug in msxml 4.0, as Michael suggested. | | Wolfgang | | Michael PG wrote: | | | Hi Anton, | | | | | | Here's the XSL stylesheet: | | | | <?xml version="1.0" encoding="UTF-8"?> | | | | <xsl:stylesheet version="1.0" | | xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> | | | | <xsl:output method="xml" version="1.0" encoding="utf-8" | indent="yes"/> | | | | <xsl:key name="by-info" match="Article" use="@info"/> | | | | <xsl:param name="filter" select="'food'"></xsl:param> | | | | <xsl:template match="Documents"> | | | | <!-- @filter='' will be true if it is there and empty or if it | | is not there at all) --> | | <xsl:apply-templates select="*[@filter='' or | @filter=$filter]"/> | | | | <Documents> | | <xsl:for-each select="Document[@filter='' or | | @filter=$filter]/Article[count(.|key('by-info',@info)[@filter='' or | | @filter=$filter][1])=1]"> | | <Document name="{@info}"> | | <xsl:copy-of | | select="key('by-info',@info)[@filter=$filter]"/> | | </Document> | | </xsl:for-each> | | </Documents> | | | | </xsl:template> | | | | </xsl:stylesheet> | | | | | | The line proposed by David C. gives an exception. | | | | <xsl:for-each select="Document[@filter='' or | | @filter=$filter]/Article[count(.|key('by-info',@info)[@filter='' or | | @filter=$filter][1])=1]"> | | | | | | The XML looks like: | | | | <?xml version="1.0" encoding="utf-8"?> | | | | <Documents> | | <Document chapter="1" title="title 1" href="file1.xml" filter=""> | | <Article title="1.1" info="sub" filter="drink"/> | | <Article title="1.2" info="main" filter="food"/> | | </Document> | | <Document chapter="2" title="title 2" href="file2.xml" | filter="drink"> | | <Article title="2.1" info="sub" filter="drink"/> | | <Article title="2.2" info="main" filter="food"/> | | </Document> | | </Documents> | | | | | | Thanx. | | | | -M | | | | | |> From: Anton Triest <anton@xxxxxxxx> | |> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx | |> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx | |> Subject: Re: [xsl] Re: [xslt transform & grouping] Using the Muenchian | |> Method? | |> Date: Wed, 06 Oct 2004 00:47:56 +0200 | |> | |> Michael PG wrote: | |> | |>> After adding the suggested line I got an exception lake it last case. | |>> | |>> select="Document[@filter='' or | |>> @filter=$filter]/Article[count(.|key('by-info',@info)[@filter='' or | |>> @filter=$filter][1])=1]"> | |> | |> | |> | |> Hi Michael (I'm jumping in again, was away yesterday) | |> | |> did you define the key in this template? (that caused the exception | |> last time, didn't it) | |> if so, maybe you'll better post the complete stylesheet once more... | |> (+ exception details) | |> | |> Anton | |> | |> | |> | | | | _________________________________________________________________ | | On the road to retirement? Check out MSN Life Events for advice on how | | to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement | | | | | | | | | |> |>
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Re: [xsl] Re: [xslt transform & gro, Werner, Wolfgang | Thread | Re: [xsl] Re: [xslt transform & gro, Werner, Wolfgang |
Re: [xsl] Re: [xslt transform & gro, Werner, Wolfgang | Date | RE: [xsl] Group and compare data, Michael Kay |
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