OnClientImageChanging

Updated on Aug 24, 2026

The OnClientImageChanging event is raised when the user initiates an action on the image. The event can be canceled.

The event handler receives the following parameters:

1. The RadImageEditor client instance that fired the event.

2. Event arguments object. You can cancel the event by calling its set_cancel(true) method

ASP.NET

<telerik:RadImageEditor RenderMode="Lightweight" runat="server" ID="RadImageEditor1" OnClientImageChanging="OnClientImageChanging"></telerik:RadImageEditor>
<script type="text/javascript">
    function OnClientImageChanging(sender, eventArgs)
    {
        alert("OnClientImageChanging event fired by RadImageEditor with ID: " + sender.get_id());
        eventArgs.set_cancel(true); //cancels the event
    }
</script>

See Also

• Client-Side Events Basics