Using node list within xsl:value-of to extract xml datas

Question

First of all, I am completly new to xslt. I have a program that gives me an xml file with the following layout

<?xml version="1.0" encoding="utf-8"?>
<Statistic>
    <Elements>
        <Element ElementName="A" Type="Element">
            <ElementResult StatType="Mean"></ElementResult>
            <ElementResult StatType="Reported">
                <ResultValue>10</ResultValue>
            </ElementResult>
        </Element>
    </Elements>
    <Elements>
        <Element ElementName="B" Type="Element">
            <ElementResult StatType="Mean"></ElementResult>
            <ElementResult StatType="Reported">
                <ResultValue>5</ResultValue>
            </ElementResult>
        </Element>
    </Elements>
    <Elements>
        <Element ElementName="C" Type="Element">
            <ElementResult StatType="Mean"></ElementResult>
            <ElementResult StatType="Reported">
                <ResultValue>0.5</ResultValue>
            </ElementResult>
        </Element>
    </Elements>
    <Elements>
        <Element ElementName="D" Type="Element">
            <ElementResult StatType="Mean"></ElementResult>
            <ElementResult StatType="Reported">
                <ResultValue>0.0001</ResultValue>
            </ElementResult>
        </Element>
    </Elements>
    <Elements>
        <Element ElementName="E" Type="Element">
            <ElementResult StatType="Mean"></ElementResult>
            <ElementResult StatType="Reported">
                <ResultValue>0.1</ResultValue>
            </ElementResult>
        </Element>
    </Elements>
</Statistic>

I want to extract only the values in a other order. The programm allows me to use a xslt stylesheet to transform my output. My idea was, to use nodelist in the stylesheet, because there a much more elements I would like to extract. Here is my code what I have:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                 xmlns:msxsl="urn:schemas-microsoft-com:xslt"
                 version="1.0">
<xsl:output method="text" />


<xsl:variable name="ElementArray">
  <ElementItem Item="C" />
  <ElementItem Item="D" />
  <ElementItem Item="A" />
  <ElementItem Item="B" />
  <ElementItem Item="E" />
</xsl:variable>

    <xsl:template match="/">
          <xsl:for-each select="msxsl:node-set($ElementArray)/ElementItem">
<xsl:value-of select="@Item"/>  <!-- This line works as excpected --> CDABE
</xsl:for-each>  
    </xsl:template>
 </xsl:stylesheet>

My problem is now, how can I use the @Item in the following line.

<xsl:value-of select="/Statistic/Elements/Element[@ElementName=***@Item must be included here, but how***]/ElementResult[@StatType='Reported']/ResultValue" />
<!-- This line should give in the end --> 0.5 0.0001 10 5 0.1

I hope anyone has an idea how I can make this.

Edit: corrected output and xml file.

Answer 1

I am inclined towards an entirely different method to approach this:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text"/>

<xsl:param name="element-names">C D A B E </xsl:param>

<xsl:key name="elem" match="Element" use="@ElementName" />

<xsl:template match="/">
    <xsl:value-of select="$element-names"/>  
    <xsl:text>&#10;</xsl:text>
    <xsl:call-template name="process"/>
</xsl:template>

<xsl:template name="process">
    <xsl:param name="element-names" select="$element-names" />
    <xsl:if test="$element-names">
        <xsl:variable name="current-name" select="substring-before($element-names, ' ')" />
        <xsl:value-of select="key('elem', $current-name)/ElementResult[@StatType='Reported']/ResultValue"/> 
        <xsl:text> </xsl:text>
        <xsl:call-template name="process">
            <xsl:with-param name="element-names" select="substring-after($element-names, ' ')"/>
        </xsl:call-template>
    </xsl:if>
</xsl:template>

</xsl:stylesheet>

Using your input example, this returns:

C D A B E 
0.5 0.0001 10 5 0.1