Incidentally, if you are just fetching data, you can use the view rather
than translating back to the original DataTable, as long as the view has
the columns you need.
On Monday, August 13, 2012 4:35:34 PM UTC-4, asgallant wrote:
>
> The row property of the event returns the row in the DataView used to draw
> the chart, which you can get by calling the chart wrapper's #getDataTable
> method. The view then has a method #getTableRowIndex which translates the
> row index into the index of the DataTable/DataView that was used to draw
> the dashboard (typically this is your DataTable, but you could have a
> different setup).
>
> google.visualization.events.addListener(chart.getChart(), 'onmouseover',
> function (e) {
> var view = chart.getDataTable();
> var tableRow = view.getTableRowIndex(e.row);
> // do something with tableRow
> });
>
> On Monday, August 13, 2012 1:05:07 PM UTC-4, Luca Bulegato wrote:
>>
>> Hi all,
>> I have some problem with changerangefilter and linechart or probably I am
>> missing something,.
>> I am drawing a linechart with a ChartRangeFilter control.
>> I have a listner for onmouseover on the chart and when I pass the mouse
>> over the chart i get the events with the overHandler(e) function.
>> Then I get the e.row element in order to get the row in the datatable
>> "under" the chart.
>> This works great but when I change the range of the ChartRangeFilter the
>> e.row value is about the point in the graph ..not in the datatable...
>>
>> So in general How can i Get the right row in the datatable after a
>> mouseover event in the chart ?
>>
>> thanks a lot
>>
>>
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