Events Overview
Client-side events for RadAjaxManager/RadAjaxPanel
RadAjaxManager and RadAjaxPanel both descend from RadAjaxControl . RadAjaxControl introduces the AjaxClientEvents property that contains the following events:
| Name | Description |
|---|---|
| OnRequestStart | Fired when a request to the server is started. |
| OnResponseEnd | Fired when a response from the server is processed. |
To use these events, simply write a JavaScript function that can be called when the event occurs(Example 1 ). Then assign the name of the JavaScript function as the value of the the corresponding property.
Example 1: Displays a message when request starts and ends.
<script type="text/javascript">
function requestStart(sender, eventArgs) {
alert('Request start');
}
function responseEnd(sender, eventArgs) {
alert('Response complete');
}
</script>
<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" ClientEvents-OnRequestStart="requestStart" ClientEvents-OnResponseEnd="responseEnd" >
<telerik:RadButton RenderMode="Lightweight" runat="server" Text="Click me!"></telerik:RadButton>
</telerik:RadAjaxPanel>