Hi Guys,
I'm having problems loading a simple chart via web services...
I load user controls as html and send them back to the page via a web
service to display the charts in a jquery ui popup dialog:
[WebMethod]
public string GetProfileForm(string formType)
{
Page page = new FormlessPage();
PersonalDetails ctl =
(PersonalDetails)page.LoadControl("/Toolbox/Controls/PersonalDetails.ascx");
page.Controls.Add(ctl);
using (StringWriter writer = new StringWriter())
{
HttpContext.Current.Server.Execute(page, writer, false);
return writer.ToString();
}
}
Whether the javascript is in the user control or created after the user
control has loaded, not only does the chart not load, but the whole page
just hangs:
<%@ Control Language="C#" AutoEventWireup="true"
CodeBehind="PersonalDetails.ascx.cs"
Inherits="ToolBox.Controls.PersonalDetails" %>
<div id="gchart_div"></div>
<script type="text/javascript">
google.load('visualization', '1.0', { 'packages': ['corechart'] });
google.setOnLoadCallback(drawChart);
function drawChart() {
// Create the data table.
var data = new google.visualization.DataTable();
data.addColumn('string', 'Topping');
data.addColumn('number', 'Slices');
data.addRows([
['Mushrooms', 3],
['Onions', 1],
['Olives', 1],
['Zucchini', 1],
['Pepperoni', 2]
]);
// Set chart options
var options = { 'title': 'How Much Pizza I Ate Last Night',
'width': 400,
'height': 300
};
// Instantiate and draw our chart, passing in some options.
var chart = new
google.visualization.PieChart(document.getElementById('gchart_div'));
chart.draw(data, options);
}
</script>
my Site.Master page has the API call:
<script type="text/javascript" src="https://www.google.com/jsapi";></script>
If I run the javascript on any other page ( ie one not loaded as a control
through web services), it works fine.
Is this a limitation of google charts? or am I doing something wrong?
I have tried moving the javascript out into the page housing the popup, but
this has the same effect.
Thanks in advance...
Dan
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