OnLoad
The load event occurs when the RadCheckBoxList client-side object is instantiated on the page.
The event handler receives two parameters:
The instance of the loaded RadCheckBoxList control.
An empty event args.
This event comes handy in scenarios when the user wants to operate with the control's client-side API and events at the earliest available stage.
<script type="text/javascript">
function clientLoad(sender, args) {
alert('RadCheckBoxList Object Loaded');
}
</script>
<telerik:RadCheckBoxList runat="server" ID="RadCheckBoxList1">
<ClientEvents OnLoad="OnLoad" />
<Items>
<telerik:ButtonListItem Text="English" Selected="true" />
<telerik:ButtonListItem Text="German" />
<telerik:ButtonListItem Text="French" />
</Items>
</telerik:RadCheckBoxList>