The OnClientHiding event occurs just before the notification is hidden. This event is cancellable.

The event handler receives the following parameters:

  1. The RadNotification client instance that fired the event.
  2. Event arguments object that allows the following functionality:

    • Call its set_cancel(true) method to cancel the event.

    • Call its get_manualClose() method to obtain a boolean value indicating whether the user closed the notification or it closed via its own timeout.

<telerik:RadNotification RenderMode="Lightweight" runat="server" ID="RadNotification1" VisibleOnPageLoad="true"
    Position="BottomRight" Width="250px" Height="100px"
    OnClientHiding="OnClientHiding" Text="Sample notification text">

<script type="text/javascript">
    function OnClientHiding(sender, eventArgs)
        alert("OnClientHiding event fired by RadNotification with id: " + sender.get_id());
        alert("The notification is being closed by the user: " + eventArgs.get_manualClose());

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