XSL variables cause a lot of confusion to those comming from other, more usual programming b
ackgrounds. Variables get a value assigned exactly once, and that's it. You cannot re-assign
 the value as in "x = x + 1". To add to the confusion, you can have two variables with the s
ame name so long as they exist in different contexts. Your "pterm" looks like it has global 
scope, so you will get a problem if you try to re-delcare it in a context where the original
 one has scope. Well, never mind, it will only lead to more confusion until you get the hang
 of it.

Rewrite your code as follows:

<xsl:variable name="pterm" select="0"/> 
<xsl:for-each select="$lstAccount[Account_Type=$grpRecord]"> 
    <xsll:choose> 
      <xsl:when test="string-length(normalize-space(Payment))!=0"> 
        <xsl:variable name="pterm1" select="$pterm + Payment"/> 
      </xsl:when> 
    <xsl:otherwise> 
       <xsl:variable name="pterm1" select="$pterm + 0.02*Balance"/> 
    </xsl:otherwise> 
   </xsl:choose> 
</xsl:for-each> 
<xsl:value-of select="$pterm1"/> 

-- 
Charles Knell
cknell@[...].com - email



-----Original Message-----
From:     john lee <excel_man@[...].com> 
Sent:     Thu, 09 Sep 2004 21:03:40 +0000
To:       xsl-list@[...].com
Subject:  [xsl] Setting values for variable

Dear All,

How do you set a value for a variable without declaring the name of the 
variable twice.
This is what I intend to do.

<xsl:variable name="pterm" select="0"/> 
<xsl:for-each select="$lstAccount[Account_Type=$grpRecord]"> 
    <xsll:choose> 
      <xsl:when test="string-length(normalize-space(Payment))!=0"> 
        <xsl:variable name="pterm" select="$pterm + Payment"/> 
      </xsl:when> 
    <xsl:otherwise> 
       <xsl:variable name="pterm" select="$pterm + 0.02*Balance"/> 
    </xsl:otherwise> 
   </xsl:choose> 
</xsl:for-each> 
<xsl:value-of select="$pterm"/> 

But this will generate error since pterm is declared more than once.
Anybody know what's the other way around this ?

Thanks

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