Hi Dongzhi,
I'd like to loop through all the children nodes under <Sample>,
Looping is easiest with <xsl:for-each>:
<xsl:for-each select="Sample/*">
...
</xsl:for-each>
find those have non-empty value,
Filter the elements that you've selected using a predicate that tests
whether they have a string value:
<xsl:for-each select="Sample/*[string()]">
...
</xsl:for-each>
and construct a String with all those values append to each other
with a "," delimiter in between them, i.e. the result String should
look like: "something,something else,".
The <xsl:value-of> gets the string value of the element; add the comma
using <xsl:text>.
<xsl:for-each select="Sample/*[string()]">
<xsl:value-of select="." />
<xsl:text>,</xsl:text>
</xsl:for-each>
And I need to assign this String to a variable since I need to use
it elsewhere.
Just wrap the above in an <xsl:variable> element as follows:
<xsl:variable name="String">
<xsl:for-each select="Sample/*[string()]">
<xsl:value-of select="." />
<xsl:text>,</xsl:text>
</xsl:for-each>
</xsl:variable>
Technically, the $String variable is set to a result tree fragment
containing a single text node whose string value is the value that
you're after, but this will make no difference when you use the
variable as you would a string.
Cheers,
Jeni
---
Jeni Tennison
http://www.jenitennison.com/
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list