I have a Panel inside a repeat control that I'm trying to pull the inner HTML from when a button is clicked? I have tried the code below but it is not working because the html rendered ID is different when I launch the page in a browser.
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core"
xmlns:xe="http://www.ibm.com/xsp/coreex">
<xp:repeat id="repeat1" rows="30" value="#{javascript:getNames();}" var="rowData" style="width:100%">
<xp:panel id="pnlReport">
<xp:table style="width:100.0%">
<xp:tr>
<xp:td>
<xp:label value="#{javascript:rowData.Name}" id="label3"></xp:label>
</xp:td>
</xp:tr>
</xp:table>
</xp:panel>
</xp:repeat>
<xp:button value="GET INNER HTML" id="button1">
<xp:eventHandler event="onclick" submit="false">
<xp:this.script><![CDATA[var el = XSP.getElementById('#{id:pnlReport}'); alert(el.innerHTML);]]>
</xp:this.script>
</xp:eventHandler>
</xp:button>
</xp:view>
<xp:panel id="pnlReport">
is within a repeat block.
Id will be rendered in your example as
'#{id:pnlReport}'
has to be used within the same repeat block to get the correct ids.
Otherwise you get just "view:_id1:repeat1:pnlReport" without any index - and such an id doesn't exist.
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core" xmlns:xe="http://www.ibm.com/xsp/coreex">
<xp:repeat id="repeat1" rows="30" value="#{javascript:['aaa', 'bbb'];}"
var="rowData" style="width:100%">
<xp:panel id="pnlReport">
<xp:table style="width:100.0%">
<xp:tr>
<xp:td>
<xp:label value="#{javascript:rowData}" id="label3"></xp:label>
</xp:td>
</xp:tr>
</xp:table>
</xp:panel>
<xp:button value="GET INNER HTML" id="button1">
<xp:eventHandler event="onclick" submit="false">
<xp:this.script><![CDATA[
var el = XSP.getElementById('#{id:pnlReport}');
alert(el.innerHTML);]]>
</xp:this.script>
</xp:eventHandler>
</xp:button>
</xp:repeat>
</xp:view>
As an alternative you can place the panel and the button outside the repeat control. This way you will get table's whole rendered HTML:
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core" xmlns:xe="http://www.ibm.com/xsp/coreex">
<xp:panel id="pnlReport">
<xp:table style="width:100.0%">
<xp:repeat rows="30" value="#{javascript:['aaa', 'bbb'];}"
var="rowData" style="width:100%" removeRepeat="true">
<xp:tr>
<xp:td>
<xp:label value="#{javascript:rowData}" id="label3"></xp:label>
</xp:td>
</xp:tr>
</xp:repeat>
</xp:table>
</xp:panel>
<xp:button value="GET INNER HTML" id="button1">
<xp:eventHandler event="onclick" submit="false">
<xp:this.script><![CDATA[
var el = XSP.getElementById('#{id:pnlReport}');
alert(el.innerHTML);]]>
</xp:this.script>
</xp:eventHandler>
</xp:button>
</xp:view>