You can't pass a DataTable to the ControlWrapper's ui.chartView option (the 
group method returns a DataTable).  You need to pass an object with a 
"columns" property that is an array of columns to use in the control's 
internal chart:

chartView: {
    columns: [3, 4]
}

I see that you are grouping data again in a "ready" event handler - what is 
your goal for this control?

On Sunday, January 5, 2014 4:21:56 PM UTC-5, faladu wrote:
>
> Link to the fiddle : http://jsfiddle.net/sTHw5/1/
>

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