Fired by

This event is fired when a request is sent to the server.

Arguments

sender - this is the instance of the client-side RadAjaxManager/RadAjaxPanel object
arguments
     - arguments.EventTarget -  the UniqueID of the element that had raised the request
     - arguments.EventArgument - the second parameter of the original __doPostback function
     - arguments.EventTargetElement - an instance of the client-side object that had raised the callback request

Can be canceled

No

Example

The javascript function for implementing the OnRequestSent event looks like this:

ASPX/ASCX	Copy Code
<script type="text/javascript"> function onRequestSent(sender, arguments) {     alert( "AJAX request has been sent."); }; </script> <rad:RadAjaxPanel ID="RadAjaxPanel1" runat="server" ClientEvents-OnRequestSent="onRequestSent"     Height="200px" Width="300px"> </rad:RadAjaxPanel>

Telerik RadAjax controls provide client events which allow you to execute JavaScript code on the client at different stages of the AJAX request. This functionality gives you more flexibility in completing complex tasks in your project.

To implement this functionality, you need to define the custom JavaScript functions you want to use, and then call them from code-behind using the ClientEvents property of the control.