Reputation:
I'm trying to create custom tooltips for a Google Charts timeline chart, but I can't get my custom string to show up. The chart still displays the default tooltip.
google.charts.load('current', {'packages':['timeline']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Team');
data.addColumn('date', 'Season Start Date');
data.addColumn('date', 'Season End Date');
data.addColumn({type: 'string', role: 'tooltip'});
data.addRows([
['Baltimore Ravens', new Date(2000, 8, 5), new Date(2001, 1, 5), 'my tooltip'],
['New England Patriots', new Date(2001, 8, 5), new Date(2002, 1, 5), 'my tooltip'],
]);
var options = {
height: 450,
timeline: {
groupByRowLabel: true
}
};
var chart = new google.visualization.Timeline(document.getElementById('chart_div'));
chart.draw(data, options);
}
Here is the Google Charts documentation: https://developers.google.com/chart/interactive/docs/customizing_tooltip_content
JSFiddle: https://jsfiddle.net/nt12ev9h/
What am I doing wrong?
Upvotes: 0
Views: 1176
Reputation:
As mentioned by WhiteHat, my columns were out of order.
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Team');
data.addColumn('string', 'Time');
data.addColumn({type: 'string', role: 'tooltip'});
data.addColumn('date', 'Season Start Date');
data.addColumn('date', 'Season End Date');
data.addRows([
['Baltimore Ravens', '', 'my tooltip', new Date(2000, 8, 5), new Date(2001, 1, 5)],
['New England Patriots', '', 'my tooltip', new Date(2001, 8, 5), new Date(2002, 1, 5)],
]);
Updated JSFiddle: https://jsfiddle.net/nt12ev9h/2/
Upvotes: 2