Google图表：过滤GeoChart

Question

I'm trying to use a ControlWrapper to filter data to display on a GeoChart inside a dashboard. The problem is the following : I have to have three columns : 'Country', 'value' and 'quarter'. Now, I want to display information for one quarter only, which I can select thanks to a CategoryPicker. Then, using the dashboard features, I want to bind my picker with my GeoChart. However, I cannot display my GeoChart as it throw an error because I use three columns where I should only have two...

I know the trick is to use a DataView and hide the third column but then I cannot link my filter and my geochart.

Is there a workaround here? Part of my code can be found below. Btw, this works fine with other types of chart, but not with the GeoChart... why?

In advance, thanks a lot for your help !

var data = response.getDataTable();

        var dashboard = new google.visualization.Dashboard(document.getElementById('dashboard_div'));

        var quarterSelector = new google.visualization.ControlWrapper({
                'controlType': 'CategoryFilter',
                'containerId': 'filter_div',
                'options': {
                    'filterColumnLabel': 'Quarter',
                     ui: {
                        allowTyping: false,
                        allowMultiple: false,
                        allowNone: false
                    },
                    'chartView': {
                        'columns': [0,1]
                    },
                }
        });

        var mapChart = new google.visualization.ChartWrapper({
            'chartType': 'GeoChart',
            'containerId': 'regions_div',
            'options': {
                'displayMode': 'regions',
                'region': '150',
                'view': {'columns':[0,1]}
            }
        });         

    dashboard.bind(quarterSelector, mapChart);      
    dashboard.draw(data);

Answer 1

first, chartView is part of ui on ChartRangeFilter -- not CategoryFilter

in addition, view: {'columns':[0,1]} should not be part of options
but on same level as options , chartType , and containerId

however, neither should be needed here...

 google.charts.load('current', { packages: ['controls', 'geochart'], callback: drawChart }); function drawChart() { var data = google.visualization.arrayToDataTable([ ['Country', 'Popularity', 'Quarter'], ['Germany', 200, 1], ['United States', 300, 2], ['Brazil', 400, 3], ['Canada', 500, 4], ['France', 600, 3], ['RU', 700, 2] ]); var dashboard = new google.visualization.Dashboard(document.getElementById('dashboard_div')); var quarterSelector = new google.visualization.ControlWrapper({ controlType: 'CategoryFilter', containerId: 'filter_div', options: { filterColumnLabel: 'Quarter', ui: { allowTyping: false, allowMultiple: false, allowNone: false } } }); var mapChart = new google.visualization.ChartWrapper({ chartType: 'GeoChart', containerId: 'regions_div', options: { displayMode: 'regions' } }); dashboard.bind(quarterSelector, mapChart); dashboard.draw(data); } 

 <script src="https://www.gstatic.com/charts/loader.js"></script> <script src="https://www.google.com/jsapi"></script> <div id="dashboard_div"> <div id="filter_div"></div> <div id="regions_div"></div> </div>