Thanks. That's is working perfect! :D
El martes, 21 de mayo de 2013 17:07:11 UTC+2, asgallant escribió:
>
> That happens when there are no selected elements (you are trying to access
> the first element of an array with 0 elements). The select event fires
> when an element is selected and when it is deselected, so you have to test
> for the length of the array:
>
> var selection = Chart.getSelection();
> if (selection.length > 0) {
> var name = dataTable.getValue(selection[0].row, 3);
> // do something with name
> }
> else {
> // go to a state appropriate for having no selected elements
> }
>
> On Tuesday, May 21, 2013 10:48:38 AM UTC-4, John wrote:
>>
>>
>> 1. The message is:
>>
>> Uncaught TypeError: Cannot read property '0' of undefined
>>
>> Any idea?
>> Thanks!
>>
>> El martes, 21 de mayo de 2013 15:34:48 UTC+2, asgallant escribió:
>>>
>>> Open it in Chrome, view the developers console (ctrl+shift+j to open),
>>> and select something in the chart - what error messages appear in the
>>> console?
>>>
>>> On Tuesday, May 21, 2013 2:58:48 AM UTC-4, John wrote:
>>>>
>>>> Thanks for help me, buI tried that and I will not.
>>>> I assume that the user will select one just because they can make more
>>>> selections at a time.
>>>> The first line if it works (var selection = Chart.getSelection();),
>>>> but the second is not.(var name = dataTable.getValue(selection[0].row, 3);)
>>>> It freezes the chart and unresponsive to new interactions.
>>>>
>>>>
>>>>
>>>>
>>>> El lunes, 20 de mayo de 2013 18:49:19 UTC+2, asgallant escribió:
>>>>>
>>>>> The selection object is typically an array, which potentially contains
>>>>> multiple selected data points. If you are assuming that your users are
>>>>> only selecting one point (or the chart doesn't support multiple
>>>>> selections), then this is what you would do:
>>>>>
>>>>> var selection = Chart.getSelection();
>>>>> var name = dataTable.getValue(selection[0].row, 3);
>>>>>
>>>>> On Monday, May 20, 2013 12:13:11 PM UTC-4, John wrote:
>>>>>>
>>>>>> How I can get the name of the tooltip.
>>>>>> I'm using the event 'select' and the function getSelection and
>>>>>> getValue, but the line getValue not work fine. I trie with several types
>>>>>> code and I couldn't get the name.
>>>>>>
>>>>>> The code is:
>>>>>>
>>>>>> var selection = Chart.getSelection();
>>>>>> var name =
>>>>>> dataTable.getValue(selection.row[0],selection.column[3]);
>>>>>>
>>>>>
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