XsltArgumentLis t not working with ASP:XML control

[Paul]

Hi all.

This one is really getting to me now, I'm using the <asp:xml web server
control and I'm trying to use the XsltArgument list to add a custom class so
that I can do some formatting in the XSL style sheet. however each time it
complains that the prefix "util" could not be found, any ideas????????
bloody thing is driving me mad

code snippet:

Dim xslArg As Xml.Xsl.XsltArg umentList = New Xml.Xsl.XsltArg umentList
Dim util As Object = New test1
xslArg.AddExten sionObject("urn :util", util)
xmlGridData.Doc umentContent = ds.GetXml
xmlGridData.Tra nsformArgumentL ist = xslArg
xmlGridData.Tra nsformSource = "paul.xsl"

XSL snippet:

<xsl:value-of select="util:sa yhelloall"/>

Server error:

Prefix 'util' is not defined.
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Xml.Xsl. XsltException: Prefix 'util' is not
defined.

Source Error:

[Oleg Tkachenko [MVP]]

Paul wrote:

Dim xslArg As Xml.Xsl.XsltArg umentList = New Xml.Xsl.XsltArg umentList
Dim util As Object = New test1
xslArg.AddExten sionObject("urn :util", util)
xmlGridData.Doc umentContent = ds.GetXml
xmlGridData.Tra nsformArgumentL ist = xslArg
xmlGridData.Tra nsformSource = "paul.xsl"

XSL snippet:

<xsl:value-of select="util:sa yhelloall"/>

As you are talking about extension function, most likely you mean

<xsl:value-of select="util:sa yhelloall()"/>

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[Paul]

Hi.

Tried that and it still fails.

Transscript from ASP.NET posting

At 12/6/2004 3:46:03 AM a message was posted to a thread you were tracking.

--------------------------

Re: XsltArgumentLis t not working with ASP:XML control by madladuk If I add
this to the xsl sheet when i call the function whch basically returns a
string nothing is shown in the html.

<xsl:styleshe et

xmlns:xsl="http ://www.w3.org/1999/XSL/Transform"

xmlns:user="urn :my-scripts"

xmlns:msxsl="ur n:schemas-microsoft-com:xslt"

xmlns:dt="urn:s chemas-microsoft-com:datatypes"

xmlns:util="urn :util"

version="1.0">

If I call the funciton as util:sayhelloal l then nothing is shown and no
error is produced. When I use the debugger the function is never called. If
i use sayhelloall() then the following error is received.

Server Error in '/inSight_200' Application.

--------------------------------------------------------------------------------

Cannot find the script or external object that implements prefix 'util'.

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Xml.Xsl. XsltException: Cannot find the script or
external object that implements prefix 'util'.

Source Error:

[XsltException: Cannot find the script or external object that implements
prefix 'util'.]

System.Xml.Xsl. XsltCompileCont ext.ResolveFunc tion(String prefix, String
name, XPathResultType[] argTypes) +283

System.Xml.XPat h.XsltFunction. get_Function() +126

System.Xml.XPat h.XsltFunction. ReturnType() +11

System.Xml.XPat h.XPathNavigato r.Evaluate(XPat hExpression expr,
XPathNodeIterat or context) +70

System.Xml.Xsl. Processor.Value Of(ActionFrame context, Int32 key) +52

System.Xml.Xsl. ValueOfAction.E xecute(Processo r processor, ActionFrame frame)
+54

System.Xml.Xsl. ActionFrame.Exe cute(Processor processor) +24

System.Xml.Xsl. Processor.Execu te() +78

System.Xml.Xsl. XslTransform.Tr ansform(IXPathN avigable input,
XsltArgumentLis t args, TextWriter output, XmlResolver resolver) +74

System.Web.UI.W ebControls.Xml. Render(HtmlText Writer output) +155

System.Web.UI.C ontrol.RenderCo ntrol(HtmlTextW riter writer) +241

System.Web.UI.C ontrol.RenderCh ildren(HtmlText Writer writer) +72

System.Web.UI.C ontrol.Render(H tmlTextWriter writer) +7

System.Web.UI.C ontrol.RenderCo ntrol(HtmlTextW riter writer) +241

System.Web.UI.P age.ProcessRequ estMain() +1880

--------------------------

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"Oleg Tkachenko [MVP]" <oleg@NO!SPAM!P LEASEtkachenko. com> wrote in message
news:Oe******** ******@tk2msftn gp13.phx.gbl...

Paul wrote:

Dim xslArg As Xml.Xsl.XsltArg umentList = New Xml.Xsl.XsltArg umentList
Dim util As Object = New test1
xslArg.AddExten sionObject("urn :util", util)
xmlGridData.Doc umentContent = ds.GetXml
xmlGridData.Tra nsformArgumentL ist = xslArg
xmlGridData.Tra nsformSource = "paul.xsl"

XSL snippet:

<xsl:value-of select="util:sa yhelloall"/>

As you are talking about extension function, most likely you mean

<xsl:value-of select="util:sa yhelloall()"/>

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[Oleg Tkachenko [MVP]]

Paul wrote:

If I call the funciton as util:sayhelloal l then nothing is shown and no
error is produced. When I use the debugger the function is never called. If
i use sayhelloall() then the following error is received.
util:sayhelloal l isn't a function call. As per XPath syntax that selects
an element named util:sayhelloal l. Functions always have round brackets
at the end.
Cannot find the script or external object that implements prefix 'util'.

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Xml.Xsl. XsltException: Cannot find the script or
external object that implements prefix 'util'.

Dim xslArg As Xml.Xsl.XsltArg umentList = New Xml.Xsl.XsltArg umentList
Dim util As Object = New test1

Hey, you pass it as Object, why? I'm not sure but that might be the
reason. Pass it as an instance of test1 class. And make sure test1 class
has public non-static method named "sayhelloal l" with no arguments.

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[Paul]

Excellent, thanks that worked, also found that the class name was not
correct.
Thanks
Paul
"Oleg Tkachenko [MVP]" <oleg@NO!SPAM!P LEASEtkachenko. com> wrote in message
news:O5******** *****@TK2MSFTNG P14.phx.gbl...

Paul wrote:

If I call the funciton as util:sayhelloal l then nothing is shown and no
error is produced. When I use the debugger the function is never called.
If i use sayhelloall() then the following error is received.

util:sayhelloal l isn't a function call. As per XPath syntax that selects
an element named util:sayhelloal l. Functions always have round brackets at
the end.

Cannot find the script or external object that implements prefix 'util'.

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Xml.Xsl. XsltException: Cannot find the script
or external object that implements prefix 'util'.

Dim xslArg As Xml.Xsl.XsltArg umentList = New Xml.Xsl.XsltArg umentList
Dim util As Object = New test1

Hey, you pass it as Object, why? I'm not sure but that might be the
reason. Pass it as an instance of test1 class. And make sure test1 class
has public non-static method named "sayhelloal l" with no arguments.

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com