[alternate row color using styles]

I am using iReport3.5.2 and have a repot where Iwould like to have alternate row colors. I have searched this forum and googled it, found several alternatives. In my case I found that it could be done with styles applied to a frame. However, when I applied it in my report, it did not work either in PDF or on the Excel or RTF outputs.

What do I need to do to get the alternate row color?

Code:

    <style name="EvenOddRowStyle" isDefault="false" backcolor="#DFE5FF">        <conditionalStyle>            <conditionExpression><![CDATA[new Boolean($V{REPORT_COUNT}.intValue() %2 == 0)]]></conditionExpression>            <style isDefault="false"/>        </conditionalStyle>    </style>    <detail>        <band height="20">            <frame>                <reportElement style="EvenOddRowStyle" x="0" y="0" width="692" height="20"/>                <textField isBlankWhenNull="true">                    <reportElement x="223" y="0" width="66" height="20" forecolor="#404040" backcolor="#FFFFFF"/>                    <textElement textAlignment="Center" verticalAlignment="Middle" markup="styled">                        <font fontName="Arial" size="10"/>                    </textElement>                    <textFieldExpression class="java.lang.String"><![CDATA[$F{sumItems}]]></textFieldExpression>                </textField>            </frame>        </band>    </detail>