Sorry, my mistake. the #getDataTable method should be a function call, not
a property:
var rowCount = chart.getDataTable().getNumberOfRows();
On Tuesday, April 8, 2014 12:27:11 PM UTC-4, Nick wrote:
>
> Thanks for your answers! However I still have a problem with the
> groupWidth option.. The chart.getDataTable.getNumberOfRows() statement
> returns Object function (){return this.n} has no method 'getNumberOfRows' I
> tried to several alternative ways to get the number of rows for the current
> selection of the DateRangeFilter but without any success.
>
> On Monday, April 7, 2014 4:10:19 PM UTC-4, asgallant wrote:
>>
>> Use a "statechange" event handler on the date filter to check how many
>> rows of data are in the filtered set, and change the bar.groupWidth option
>> if the number is below 12:
>>
>> google.visualization.events.addListener(dateFilter, 'statechange',
>> function () {
>> var rowCount = chart.getDataTable.getNumberOfRows();
>> if (rowCount < 12) {
>> chart.setOption('bar.groupWidth', 15);
>> }
>> else {
>> chart.setOption('bar.groupWidth', '90%');
>> }
>> chart.draw();
>> });
>>
>> The Visualization API loads with the browser's locale by default, so
>> whatever your users have set is what loads. You can force a particular
>> locale by specifying the "language" parameter in the google.load call.
>> This can only be done when the API is first loaded - you can't change
>> locale without reloading the page. See the
>> documenation<https://developers.google.com/chart/interactive/docs/library_loading_enhancements#loadwithlocale>for
>> details.
>>
>> The width of the DateRangeFilter is not configurable. You can submit a
>> feature
>> request<http://code.google.com/p/google-visualization-api-issues/issues/list>to
>> add support for that.
>>
>>
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