It seems that you're missing the "@" before the attribute name. This should fix the problem:

<xr:rules xmlns:xr="http://www.xrules.org/2003/11">

  <xr:ruleset context="/FLN">

    <xr:calculate target="@SUM">

      <xr:value>sum(CFLN)</xr:value>

    </xr:calculate>

  </xr:ruleset>

</xr:rules>

Regards,

Waleed

-----Original Message-----
From: radobject [mailto:radobject@...]
Sent: Saturday, January 13, 2007 2:18 PM
To: xrules@yahoogroups.com
Subject: Need help about XMLAttribute

Hi,

Thank you about XRule,It is so usefull Rule Management.

I have problem with XmlAttribute like this:

                  <FLN ID="F051601004" SUM="">

                        <CFLN ID="1">10</CFLN>

                        <CFLN ID="2">2</CFLN>

                        <CFLN ID="3">4</CFLN>

                  </FLN>

I want to calculate sum of CFLN and set it into SUM attribute.

<?xml version="1.0" encoding="utf-16"?>

<xr:rules xmlns:xr="http://www.xrules.org/2003/11">

      <xr:ruleset context="/FLN">

            <xr:calculate target="SUM">

                  <xr:value>sum(CFLN)</xr:value>

            </xr:calculate>

      </xr:ruleset>

</xr:rules>

But when I use this XRule, I get error "Not found SUM,You can use

CreateNode Attribute ...."

How can I set <SUM> XMlAttribute in my XML file.