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xsl variables

Posted on 2001-08-22
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Last Modified: 2008-02-01
I am trying to create an image tag in an xsl stylesheet. It's path will include a variable called sURL which defines whether the server is production or development. This is the line of code as it was in ASP.

"https://<%=sURL%>/images/dotted.gif"

Now I need to do this with xsl.
How do I get it to replace sURL with a value set in an include file on an asp page.

So far my environment is very simple. An xml page with a record, an XSL sheet, and an asp page which loads both, and does the transformnode.

Any ideas?

Thanks in advance

Dan

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Question by:danchristie
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3 Comments
 
LVL 4

Accepted Solution

by:
chabaud earned 100 total points
ID: 6414378
You could use the AddParameter method from IXSLProcessor like this (from MSDN):

Dim xslt As New Msxml2.XSLTemplate
Dim xslDoc As New Msxml2.FreeThreadedDOMDocument
Dim xmlDoc As New Msxml2.DOMDocument
Dim xslProc As IXSLProcessor
xslDoc.async = False
xslDoc.Load "sample.xsl"
Set xslt.stylesheet = xslDoc
xmlDoc.async = False
xmlDoc.Load "books.xml"
Set xslProc = xslt.createProcessor()
xslProc.input = xmlDoc
xslProc.addParameter "param1", "Hello"
xslProc.Transform
MsgBox xslProc.output
Sample.xsl

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
   <xsl:output method="html"/>
   <xsl:param name="param1"/>
  <xsl:template match="/">
      The parameter value was: <xsl:value-of select="$param1"/>
  </xsl:template>
</xsl:stylesheet>
[C/C++]
C/C++ Syntax
HRESULT addParameter (BSTR baseName, VARIANT parameter, BSTR
namespaceURI);
Parameters
baseName [in]
The name that will be used inside the style sheet to identify the parameter context.
parameter [in]
A number, Boolean, string, node list, or node. Passing in a single node will produce a node list that contains one node (shortcut).
namespaceURI [in, optional]
Optional namespace.
C/C++ Return Values
E_FAIL if readyState is READYSTATE_INTERACTIVE.

Example
#import "msxml3.dll"
using namespace MSXML2;

#define CHECK_AND_RELEASE(pInterface)  \
if(pInterface) \
   {\
pInterface->Release();\
pInterface = NULL;\
   }\

#define RELEASE(pInterface)  \
   {\
pInterface->Release();\
pInterface = NULL;\
   }\

BOOL XSLProcessorAddParameterDemo ()
{
   BOOL bResult = FALSE;
   short sResult = FALSE;
   HRESULT hr;
   IXMLDOMDocument2 *pStyleSheet=NULL;
   IXSLTemplate *pIXSLTemplate=NULL;
   IXSLProcessor *pIXSLProcessor=NULL;
   VARIANT varValue;

   try
   {
      hr = CoCreateInstance(CLSID_XSLTemplate, NULL, CLSCTX_SERVER,
         IID_IXSLTemplate, (LPVOID*)(&pIXSLTemplate));
      SUCCEEDED(hr) ? 0 : throw hr;
     
      if(pIXSLTemplate)
      {
         hr=CoCreateInstance(CLSID_FreeThreadedDOMDocument, NULL,
CLSCTX_SERVER, IID_IXMLDOMDocument2, (LPVOID*)(&pStyleSheet));
         SUCCEEDED(hr) ? 0 : throw hr;
         
         if(pStyleSheet)
         {
            hr=pStyleSheet->put_async(VARIANT_FALSE);
            if(SUCCEEDED(hr))
            {
               hr=pStyleSheet->load(_variant_t
                  (_T("d:\\inetpub\\wwwroot\\samplexsl.xml")), &sResult);
               if(SUCCEEDED(hr) && (sResult==VARIANT_TRUE))
               {
                  hr=pIXSLTemplate->putref_stylesheet(pStyleSheet);
                  if(SUCCEEDED(hr))
                  {
                     hr=pIXSLTemplate->createProcessor(&pIXSLProcessor);
                     SUCCEEDED(hr) ? 0 : throw hr;
                     if(pIXSLProcessor)
                     {
                        hr=CoCreateInstance(CLSID_DOMDocument, NULL,
                           CLSCTX_SERVER, IID_IXMLDOMDocument2,
                           (LPVOID*)(&pIXMLDOMDocument));
                        SUCCEEDED(hr) ? 0 : throw hr;

                        if(pIXMLDOMDocument)
                        {
                           hr=pIXMLDOMDocument->put_async(VARIANT_FALSE);
                           if(SUCCEEDED(hr))
                           {
                              hr=pIXMLDOMDocument->load(_variant_t
( _T("d:\\inetpub\\wwwroot\\sampleXSLWithParam.xml")), &sResult);
                              if(SUCCEEDED(hr) && (sResult==VARIANT_TRUE))
                              {
                                 hr=pIXSLProcessor->put_input(_variant_t
                                     (pIXMLDOMDocument));
                                 if(SUCCEEDED(hr))
                                 {
                                    hr=pIXSLProcessor->addParameter
( _T("fooText"), _variant_t(_T("Add Parameter Test")), _T(""));
                                    if(SUCCEEDED(hr))
                                       bResult=TRUE;
                                       hr=pIXSLProcessor->transform(
                                          &sResult);
                                    if(SUCCEEDED(hr)&& (sResult ==
                                       VARIANT_TRUE))
                                    {
                                       pIXSLProcessor->get_output(
                                          &varValue);
                                       ::MessageBox(NULL,
                                       _bstr_t(varValue),
                                       _T("Transformed Output"), MB_OK);
                                    }
                                 }
                              }
                           }
                           RELEASE(pIXMLDOMDocument);
                        }
                     }
                  }
               }
            }
            RELEASE(pStyleSheet);
         }
         RELEASE(pIXSLTemplate);
      }
   }
   catch(...)
   {
      CHECK_AND_RELEASE(pIXSLTemplate);
      CHECK_AND_RELEASE(pStyleSheet);
      CHECK_AND_RELEASE(pIXMLDOMDocument);
      DisplayErrorToUser();
   }
   return bResult;
}
The stylesheet ? "d:\\inetpub\\wwwroot\\sampleXSLWithParam.xml"

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0" xmlns:myObj="urn:my-object">
<xsl:output method="xml" indent="yes"/>
<xsl:param name="fooText"/>

<xsl:template match="/">
<xsl:element name="bar">
<xsl:value-of select="$fooText"/>
</xsl:element>
</xsl:template>

</xsl:stylesheet>
Output (in a message box)

<?xml version=?1.0? encoding=?UTF-16??>
<bar>
Add Parameter Test
</bar>
0
 
LVL 1

Expert Comment

by:vijayneema
ID: 6424773
Thanks chabaud,

can you tell me how to do the same in JavaScript on Client side.

i am having same type of query i am using XML & XSL in one of my HTML page, and i want this variable to insert at the client side Please help me .... with some example.

bye
Vijay
0
 
LVL 4

Expert Comment

by:chabaud
ID: 6427844
Here is an example with javascript and "xml data island":

<html><head><title>XSL test</title></head><body>

<!-- ********************* XML ********************* -->

<XML id="oXml">
<X>
<GROUPA>
<A>1</A>
<A>2</A>
<A>3</A>
<A>4</A>
</GROUPA>
<GROUPB>
<A>1</A>
<A>3</A>
</GROUPB>
</X>
</XML>

<!-- ********************* XSL ********************* -->

<XML id="oXSL">
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
         version="1.0" >

<xsl:output method="html" indent="yes" encoding="UTF-8" version="1.0"/>

<xsl:template match = "/">
A from GROUPA not in GROUPB:<br/>
<xsl:for-each select="//GROUPA/A[ not( .=(//GROUPB/A)) ]">
     <li><xsl:value-of select="."/></li>
</xsl:for-each>

</xsl:template>

</xsl:stylesheet>
</XML>

<!-- ********************* HTML ********************* -->

<div id="DivLookUp" align="center"></div>

<script language="javascript">
    DivLookUp.innerHTML=oXml.transformNode( oXSL.documentElement);
</script>

</body></html>
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