XPages repeat control and button - xpages

Question

I have a repeat control on an XPage displaying item summary. To view other details, the user clicks on a button (inside the repeat) which will set a viewScope variable to the rowIndex of the repeat and then open up a modal to display the remeaining item details.
I am unable to set the viewScope variable from the button. It's like it cannot get a handle to the rowIndex.
I have a computed text field set to display the rowIndex at the beginning of the repeat (which works fine).
I'm obviously missing something elementary. Any assistance would be appreciated.
Relevant source code follows:
<xp:repeat id="repeat1" rows="50" var="entry" indexVar="rowIndex">
<xp:this.value><![CDATA[#{javascript:var m = sessionScope.assetMap;
if(m!=null){
m.entrySet()
}}]]></xp:this.value>
<div>
<small>
<label>
<xp:text escape="true" id="num">
<xp:this.value><![CDATA[#{javascript:var itemNum:Number = parseInt(rowIndex + 1);
itemNum.toPrecision(0);}]]></xp:this.value>
</xp:text>
.  Description:   
</label>
<xp:text escape="true" id="desc">
<xp:this.value><![CDATA[#{javascript:#Word(entry.getValue(),"~",3);}]]> </xp:this.value>
</xp:text>
</small>
</div>
<br></br>
<div>
<xp:button type="button" value="Details ..." id="button2">
<xp:eventHandler event="onclick" submit="true" refreshMode="complete">
<xp:this.action><![CDATA[#{javascript:try{var itemNum:Number = parseInt(rowIndex + 1);
viewScope.currentItem = itemNum.toPrecision(0);
}catch(e) {
requestScope.errstatus = e.toString();}}]]></xp:this.action>
</xp:eventHandler>
</xp:button>
02/04/2015 Update:
I have isolated the problem to the rendered property of the custom control. The code works if I don't use the rendered property.
The code in the onCLientLoad of my XPage (CSJS) is:
$(window).on('load resize', function(){
var screenWidth = $(window).width();
var sDevice = '';
switch(true){
case (screenWidth < 768):
sDevice = 'mobile';
break;
case (screenWidth < 922):
sDevice = 'tablet';
break;
case (screenWidth >= 922):
sDevice = 'desktop'
}
XSP.partialRefreshPost( '#{id:pnlList}', {params: {'sDevice': sDevice}} );
});
And the source for my custom control in the XPage with the rendered property is:
<xp:panel rendered="#{javascript:param.sDevice == 'mobile'}">
<xc:ccSYS_AppLayoutReq_p xp:key="panelContentFacet">
<xp:this.facets>
<xc:cc_cartracking_p xp:key="contentFacet"></xc:cc_cartracking_p>
</xp:this.facets>
</xc:ccSYS_AppLayoutReq_p>
</xp:panel>
Thanks,
Dan

Answer 1

You have to set option "Set partial execution mode" execMode="partial" in your button.
Look for the whole answer at your colleague's question https://stackoverflow.com/a/28330481/2065611