Paul's Programming Notes PostsRSSGithub

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);