Hi,
I am using annotation chart where the data changes according to item
selected from DropDownlist.
It works fine . But every time the data is loaded i want 1 year range to be
selected by default.
I used chart.setVisibleRange() but its not working..don't know why.
I have used webService to load data.
Here's my code:
google.visualization.events.addListener(chart, 'ready', function () {
document.getElementById('DropDownList1').onchange = function ()
{
var dropDown = document.getElementById('DropDownList1');
var value = dropDown[dropDown.selectedIndex].value;
ChartsDemo.WebService1.GetData(value, Callback);
}
function Callback(result) {
data = new google.visualization.DataTable(result);
var range = data.getColumnRange(0);
chart.setVisibleChartRange(new Date(range.max.getFullYear()
- 1, range.max.getMonth(), range.max.getDate()), null); //null sets the
maximum date
chart.draw(data,options);
}
});
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