XSLT question, Parameters from itab

Question

Hi Experts,
I'm using the following code in my abap program:
TYPE-POOLS: abap.
TYPES: BEGIN OF line_type,
  vartag   TYPE string,
  varvalue TYPE string,
  END OF line_type.
TYPES: itype TYPE TABLE OF line_type.
DATA: gt_source_itab TYPE abap_trans_srcbind_tab,
      gs_source_wa   TYPE abap_trans_resbind.
DATA: line TYPE line_type.
DATA: itab TYPE itype.
DATA: output_stream TYPE xstring.
clear line.
line-vartag   = 'tagname'.
line-varvalue = 'value'.
APPEND line TO itab.
GET REFERENCE OF itab INTO gs_source_wa-value.
gs_source_wa-name = 'TAG'.
APPEND gs_source_wa TO gt_source_itab.
TRY.
    CALL TRANSFORMATION z_cd_xsl
      SOURCE (gt_source_itab)
      RESULT XML output_stream.
In my Transformation I'm having trouble using the right expression in the select-attribute of xslt-element "xsl:with-param".
<xsl:transform version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:sap="http://www.sap.com/sapxsl"
>
<xsl:include sap:name="Z_INCLUDE_UDKXML"/>
<!-- xsl:strip-space elements="*"/ -->
<xsl:template match="/">
<xsl:call-template name="udk_nachrichtenAnfang">
               <xsl:with-param name="NachrAnf_MesBez" select=<Don't know what to do here> />
There are no syntactic errors (rest of the corresponding code is in the include). If i just set the select attribute with plain text, it works. But I want to use the value from my abap variable "varvalue".
I tried select='$LINE-VARVALUE', select="//TAG/VARVALUE", select="VARVALUE" and several others, didn't work.
I'm guessing I'll need some XPATH expression to access the serialized asXML deep structure, but I can't figure it out
Regards, Lukas

Answer 1

Check this code.....
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:sap="http://www.sap.com/sapxsl" version="1.0">
  <xsl:strip-space elements="*"/>
  <xsl:template match="/">
    <TAG>
      <xsl:apply-templates select="//TAG/item"/>
    </TAG>
  </xsl:template>
  <xsl:template match="TAG/item">
    <item>
      <VARTAG>
        <xsl:value-of select="VARTAG"/>
      </VARTAG>
      <VARVALUE>
        <xsl:value-of select="VARVALUE"/>
      </VARVALUE>
    </item>
  </xsl:template>
</xsl:transform>