You can't get an "x" to click, but you can make the bars disappear on click
with a bit of hackery:
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Year', 'Sales', 'Show Sales', 'Expenses', 'Show Expenses'],
['2004', 1000, true, 400, true],
['2005', 1170, true, 460, true],
['2006', 660, true, 1120, true],
['2007', 1030, true, 540, true]
]);
var options = {
title: 'Company Performance',
vAxis: {title: 'Year', titleTextStyle: {color: 'red'}}
};
var chart = new
google.visualization.BarChart(document.getElementById('chart_div'));
function updateChart () {
var view = new google.visualization.DataView(data);
view.setColumns([0, {
type: 'number',
label: data.getColumnLabel(1),
calc: function (dt, row) {
// return a value from column 1 if column 2 is true, null
otherwise
return dt.getValue(row, 2) ? dt.getValue(row, 1) : null;
}
}, {
type: 'number',
label: data.getColumnLabel(3),
calc: function (dt, row) {
// return a value from column 3 if column 4 is true, null
otherwise
return dt.getValue(row, 4) ? dt.getValue(row, 3) : null;
}
}]);
chart.draw(view, options);
}
google.visualization.events.addListener(chart, 'select', function () {
var selection = chart.getSelection();
if (selection.length && selection[0].row != null &&
selection[0].column != null) {
data.setValue(selection[0].row, selection[0].column * 2, false);
}
updateChart();
});
updateChart();
}
google.load('visualization', '1', {packages:['corechart'], callback:
drawChart});
see it working here: http://jsfiddle.net/asgallant/c4Lnaseb/
On Tuesday, September 23, 2014 1:36:58 PM UTC-4, min ji wrote:
>
> Hello,
> I created a bar chart (codes are below). I want to add a function on the
> chart: if users want to hide a bar from the chart, how to realize it? Is
> there a "x" button in the each bar which can be clicked to hide the bar
> (the data don't be deleted, just hide)?
> Thank you very much.
>
> <html>
> <head>
> <script type="text/javascript"
> src="https://www.google.com/jsapi";></script>
> <script type="text/javascript">
> google.load("visualization", "1", {packages:["corechart"]});
> google.setOnLoadCallback(drawChart);
> function drawChart() {
> var data = google.visualization.arrayToDataTable([
> ['Year', 'Sales', 'Expenses'],
> ['2004', 1000, 400],
> ['2005', 1170, 460],
> ['2006', 660, 1120],
> ['2007', 1030, 540]
> ]);
>
> var options = {
> title: 'Company Performance',
> vAxis: {title: 'Year', titleTextStyle: {color: 'red'}}
> };
>
> var chart = new
> google.visualization.BarChart(document.getElementById('chart_div'));
>
> chart.draw(data, options);
> }
> </script>
> </head>
> <body>
> <div id="chart_div" style="width: 900px; height: 500px;"></div>
> </body>
> </html>
>
>
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