MY CODE GOES AS BELOW:
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<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest" >
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="RadAjaxManager1">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="RadMultiPagetab" /> -- (if i mentioned this one i am getting error)
<telerik:AjaxUpdatedControl ControlID="RadTabStrip2" />
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:RadAjaxManager>
<div style="float: left; width: 100%; min-height: 830px;">
<div style="float: left; width: 100%; background-image: url(../images/bridge_logo_bg.jpg);
background-repeat: repeat-x;">
<telerik:RadTabStrip ID="RadTabStrip2" runat="server" MultiPageID="RadMultiPagetab"
SelectedIndex="0" Orientation="HorizontalTop" ShowBaseLine="true" CssClass="tabStrip">
<Tabs>
<telerik:RadTab Text="Overview" ToolTip="Overview">
</telerik:RadTab>
<telerik:RadTab Text="Attendance" ToolTip="Attendance">
</telerik:RadTab>
<telerik:RadTab Text="Discipline" ToolTip="Discipline">
</telerik:RadTab>
</Tabs>
</telerik:RadTabStrip>
</div>
<telerik:RadMultiPage ID="RadMultiPagetab" runat="server" SelectedIndex="0" >
<!-- Overview -->
<telerik:RadPageView ID="RadPageView2" runat="server">
<telerik:RadHtmlChart runat="server" ID="radhtml_dt" Width="240px" Height="300px"
OnClientSeriesClicked="OnClientSeriesClicked">
<Appearance>
<FillStyle />
</Appearance>
<Legend>
<Appearance Visible="false" />
</Legend>
<PlotArea>
<YAxis>
</YAxis>
</PlotArea>
<Legend>
<Appearance Position="Right" />
</Legend>
<ChartTitle Text="Disc : Top 10">
</ChartTitle>
</telerik:RadHtmlChart>
</div>
</telerik:RadPageView>
<telerik:RadPageView ID="Disc" runat="server">
..... some controls---------------
</telerik:RadPageView>
<telerik:RadPageView ID="Enroll" runat="server">
----some controls---------------
</telerik:RadPageView>
</telerik:RadMultiPage>
<telerik:RadCodeBlock ID="codeBlock" runat="server">
<script type="text/javascript">
function OnClientSeriesClicked(sender, args) {
// debugger;
$find("<%= RadAjaxManager1.ClientID %>").ajaxRequest(args.get_category() + ";" + sender._uniqueId);
var totstring = args._seriesData.toString();
var count = (totstring.split(",").length)
for (var i = 0; i < count; i++) {
if (args._seriesData[i].value != args.get_value()) {
args._seriesData[i].explode = false;
}
else {
args._seriesData[i].explode = true;
}
}
sender.repaint();
}
</script>
</telerik:RadCodeBlock>