Pass the chart to the selectHandler function; it should be this:
google.visualization.events.addListener(baselinechart[classname], 'select',
function () {
selectHandler(baselinechart[classname]);
});
If that is part of a loop (or other structure in which the value of
"classname" can change), then you would want to use a closure to lock the
value of classname to the handler at the time when the event handler is
created. It would look like this:
google.visualization.events.addListener(baselinechart[classname], 'select',
(function (x) {
return function () {
selectHandler(baselinechart[x]);
}
})(classname));
which locks the value of "classname" to the internal variable "x" at the
time the event handler is created. Otherwise, the event handler would use
whatever the current value of classname is when the event fires.
On Thursday, December 6, 2012 11:58:11 PM UTC-5, Shivs wrote:
>
> Somehow that did not work for me.
> So i have an array of charts:-
> google.visualization.events.addListener(baselinechart[classname],
> 'select',function(){
> selectHandler(baselinechart[classname].getSelection());
> });
>
> The above resulted in an empty array being passed to the function.
>
> What am i missing?
>
>
> On Friday, December 7, 2012 12:41:30 AM UTC+5:30, asgallant wrote:
>>
>> The events don't pass any information about which chart fired the event,
>> so there is nothing in the API that can do this, but there is a way around
>> it:
>>
>> function selectHandler (chart) {
>> var selection = chart.getSelection();
>> }
>> google.visualization.events.addListener(myChart, 'select', function () {
>> selectHandler(myChart);
>> });
>> google.visualization.events.addListener(myOtherChart, 'select', function
>> () {
>> selectHandler(myOtherChart);
>> });
>>
>> On Thursday, December 6, 2012 5:44:42 AM UTC-5, Shivs wrote:
>>>
>>> Hey
>>>
>>> Wanted to know if it is possible to have same select event handler for
>>> multiple charts.
>>> If so, how can one determine which chart was clicked (for calling
>>> function getSelection())?
>>>
>>> Thanks
>>>
>>
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