Thursday, March 27, 2014

Get Column and Row Labels In selectHandler - Google Charts / Visualization API

For a more complete example of using selectHandler, see this page: https://developers.google.com/chart/interactive/docs/basic_interactivity

My example below get the labels from the row and the columns. I used this to send the user to another link and drill-down.

// this is an example of a bar chart's selectHandler function
function selectHandler() {
var selection = chart.getSelection();
var item = selection[0];

if (item.row != null && item.column != null) {
var rowLabel = parseInt(data.getValue(item.row, 0));
var columnLabel = data.getColumnLabel(item.column);
        }
}
google.visualization.events.addListener(chart, 'select', selectHandler);

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