How do I sum() values from nodes created in a XSLT variable

Question

I'm having trouble with sum'ing up values in a variable.

XSLT Source

 <xsl:variable name="amountIn" xml:space="preserve">
 <values>
 <xsl:for-each select="ext:node-set($finData)//child::balance/@in">
 <value><xsl:value-of select="."/></value>
 </xsl:for-each>
 </values>
 </xsl:variable>

XML source:

 <source>
 <balance dpt="-1" diff="0,00" out="555777,00" in="555777,00" acnt="2120"/> 
 <balance dpt="-1" diff="0,00" out="777778,00" in="777778,00" acnt="2240"/> 
 <balance dpt="-1" diff="0,00" out="878787,00" in="878787,00" acnt="2380"/> 
 <balance dpt="-1" diff="0,00" out="87878787,00" in="87878787,00" acnt="2400"/>
 </source>

I expected this to give me the result, but all I get is "NaN"

 <xsl:value-of select="sum(ext:node-set($amountIn)/values/value)"/>

Answer 1

you are getting NAN because of the , in the number using the translate number to change this into a . should work!

 <xsl:variable name="amountIn" xml:space="preserve">
 <values>
 <xsl:for-each select="ext:node-set($finData)//child::balance/@in">
 <value><xsl:value-of select="translate(.,',','.')"/></value>
 </xsl:for-each>
 </values>
 </xsl:variable>