t:datascroller usage question

[ndnguy <pr...@gmail.com>]

Hi,
I am getting started with t:dataScroller component. I was looking at the
example shown in tomahawk examples. I have a datascroller something like:

<t:dataScroller id="scroll_2"
                    for="data"
                    rowsCountVar="rowsCount"
                    displayedRowsCountVar="displayedRowsCountVar"
                    firstRowIndexVar="firstRowIndex"
                    lastRowIndexVar="lastRowIndex"
                    pageCountVar="pageCount"
                    immediate="true"
                    pageIndexVar="pageIndex"
                    >

My question is where and how are the attributes displayedRowsCountVar, 
firstRowIndexVar ..  pageIndexVar initialized. I tried the example and got
an error message given below:

[#|2006-11-01T20:46:43.437-0500|SEVERE|sun-appserver-ee8.1_02|org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase|_ThreadID=12;|Row
is not available. Rowindex = 0|#]

[#|2006-11-01T20:46:43.562-0500|SEVERE|sun-appserver-ee8.1_02|javax.enterprise.system.container.web|_ThreadID=12;|ApplicationDispatcher[/PutnamProfiles]
Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
	at java.text.MessageFormat.applyPattern(MessageFormat.java:414)
	at java.text.MessageFormat.<init>(MessageFormat.java:350)
	at java.text.MessageFormat.format(MessageFormat.java:803)

I populate my t:datatable based on a search, initially it does not have any
rows, in the examples data is initialized prior to the page load. Is that
why i am getting that error. Please help.

Thanks,
Praveen
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