Hello,
I am having trouble when trying to implement the Google Visualization
API to show the graph only when a user clicks on the button. Everytime
time I click on "Show Graph" button, it just keeps loading. Any idea
what I am doing wrong?
Thanks
PeGa
<html>
<head>
<script type='text/javascript' src='http://www.google.com/jsapi'></
script>
<script type='text/javascript'>
function graph() {
google.load('visualization', '1', {'packages':
['annotatedtimeline']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('date', 'Date');
data.addColumn('number', 'Sold Pencils');
data.addColumn('string', 'title1');
data.addColumn('string', 'text1');
data.addColumn('number', 'Sold Pens');
data.addColumn('string', 'title2');
data.addColumn('string', 'text2');
data.addRows([
[new Date(2008, 1 ,1), 30000, undefined, undefined, 40645,
undefined, undefined],
[new Date(2008, 1 ,2), 14045, undefined, undefined, 20374,
undefined, undefined],
[new Date(2008, 1 ,3), 55022, undefined, undefined, 50766,
undefined, undefined],
[new Date(2008, 1 ,4), 75284, undefined, undefined, 14334,
'Out of Stock','Ran out of stock on pens at 4pm'],
[new Date(2008, 1 ,5), 41476, 'Bought Pens','Bought 200k
pens', 66467, undefined, undefined],
[new Date(2008, 1 ,6), 33322, undefined, undefined, 39463,
undefined, undefined]
]);
var chart = new
google.visualization.AnnotatedTimeLine(document.getElementById('chart_div'));
chart.draw(data, {displayAnnotations: true});
}
}
</script>
</head>
<body onload="">
// Note how you must specify the size of the container element
explicitly!
<div id='chart_div' style='width: 700px; height: 240px;'></div>
<input type="button" onclick="graph();" value="Show Graph"></input>
</body>
</html>
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