[xsl] Build a select list of nodes

Subject: [xsl] Build a select list of nodes
From: "Moore, Simon" <Simon.Moore@xxxxxxxxxx>
Date: Tue, 26 Nov 2002 10:18:54 +0100
Hi

Another New recruit... :-)     I would be grateful for any help on this as it is my first real XSL project.

I am trying to build a list of all the unique nodenames available in an xml file and present it as a selectable drop down list in an HTML page.
I am using IE 5.5 and MSXML on Windows 95.  At the moment I have all the files saved on my windows desktop so everything is local.
My problem is that when I open the HTML page, the surrounding text and select box apprear, but there is nothing to select in the
box.  If I change the output method to text I can see that my newline has no effect at all.  The listbox OPTION statements appear as one
long line.  If I put a <BR /> tag in the loop and comment out the FORM and SELECT tags then it will print the text in the same way as if I had 
typed the HTML by hand - if I paste it into a file and test it in the browser as a fixed page it all works perfectly.

I searched on the Web and found that preserveWhiteSpace has some effect on spacing but, I'm not so sure that this is the solution. I just can't
get it to work. I'm sure that I am missing something simple.

I have included a sample XML plus my XSL and HTML page.  The XSL, HTML/JavaScript have been patched together from different sources (web/books).

Many thanks
Simon.

--------- START XML --------
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="./list_test.xsl"?>
<computer-list>
<computer>
<name>fred</name>
<project>fasttrack</project>
<architecture>w32-ix86</architecture>
<status>UP</status>
	<diskdrives>
		<drive>A</drive>
		<drive>B</drive>
		<drive>C</drive>
	</diskdrives>
</computer>

.... more computers are in the list ....

</computer-list>

--------- END XML --------


--------- START XSL --------

<?xml version="1.0" ?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="1.0">

<xsl:output method="html"/>

<xsl:variable name="newline">
<xsl:text>
</xsl:text>
</xsl:variable>

<xsl:variable name="testtext">
<xsl:text>
This is a test of the variables and it works when selected later in the XSL.
</xsl:text>
</xsl:variable>

<xsl:key name="elements" match="*" use="name()" />
<xsl:template match="/">
<HTML>
<HEAD><TITLE>
<xsl:text>Maclaren - Select The elements required</xsl:text>
</TITLE></HEAD>
<BODY>
<H1>
<xsl:text>Summary of Elements</xsl:text>
</H1>
<BR />
<xsl:value-of select="$testtext"/>
<BR />
<FORM>
<SELECT NAME = "eltype">
<xsl:for-each select="//*[generate-id(.)=generate-id(key('elements',name())[1])]">
        <xsl:sort select="name()" />
        <xsl:for-each select="key('elements', name())">
                <xsl:if test="position()=1">

                        <xsl:text>&lt;OPTION VALUE = &quot;</xsl:text>
                        <xsl:value-of select="name()" />
                        <xsl:text>&quot;&gt;</xsl:text>
                        <xsl:value-of select="name()" />
                        <xsl:value-of select="$newline"/>

	      <!-- If I put BR/ here the text prints the correct HTML text -->
	</xsl:if>
        </xsl:for-each>
</xsl:for-each>
</SELECT>
</FORM>
<BR />
<xsl:text>there should be a newline after this but it doesn't work...</xsl:text>
<xsl:value-of select="$newline"/>
<xsl:text>This line just gets concatenated to the previous line.</xsl:text>
</BODY>
</HTML>
</xsl:template>
</xsl:stylesheet>


--------- END XSL  --------



--------- START HTML/JAVASCRIPT --------
<html>
<head>
<title>
XML test !!
</title>
</head>
	<body>

		<SCRIPT LANGUAGE="JavaScript">
			
			// Load XSL
			var objXSLT = new ActiveXObject("MSXML2.FreeThreadedDomDocument");
			objXSLT.async = false;
			objXSLT.load("list_test.xsl");

			// create a compiled XSL-object
			var objCompiled = new ActiveXObject("MSXML2.XSLTemplate");
			objCompiled.stylesheet = objXSLT.documentElement;
				
			// create XSL-processor
			var objXSLProc = objCompiled.createProcessor();

			// Load XML
			var objXML = new ActiveXObject("MSXML2.FreeThreadedDomDocument");
			objXML.preserveWhiteSpace = true;
			objXML.async = false;
			objXML.load("tmp.xml");

			// input for XSL-processor
			objXSLProc.input = objXML;
			// objXSLProc.addParameter("NameOfYourParameter1", "ValueOfYourParameter1");
			// objXSLProc.addParameter("NameOfYourParameter2", "ValueOfYourParameter2");
			// etc...

			// transform
			objXSLProc.transform();

			// display
			document.write(objXSLProc.output);
		</SCRIPT>

	</body>

</html>

--------- END HTML/JAVASCRIPT --------

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


Current Thread