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Sys.CancelEventArgs OnGroupCollapsing Property


To get or set property values for client API properties, you must call property accessor methods that are named with the get_ and set_ prefixes. For example, to get or set a value for a property such as cancel, you call the get_cancel or set_cancel.

This event is fired before a group is collapsed.

Fired by RadGrid
Arguments N/A
Can be canceled Yes, set eventArgs.set_cancel(true) to cancel


<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server">
        <ClientEvents OnGroupCollapsing="GroupCollapsing" />
function GroupCollapsing(sender, eventArgs) {
    alert("GroupCollapsing is being fired");
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