RadGrid for ASP.NET AJAX
Contents
RadControls for ASP.NET AJAX

This event is fired before the header context menu is rendered.

Fired by

RadGrid

Arguments

gridColumn - current GridColumn object

domEvent - the original browser event

menu - header menu instance

Can be canceled

Yes

Example:

CopyASPX
<telerik:RadGrid ID="RadGrid1" runat="server">
    <ClientSettings>
        <ClientEvents OnHeaderMenuShowing="HeaderMenuShowing" />
    </ClientSettings>
</telerik:RadGrid>
CopyJavaScript
function HeaderMenuShowing(sender, eventArgs) {
    if (eventArgs.get_gridColumn().get_uniqueName() == "ContactName") {
        //hide the Clear sorting option from the header context menu of the column with name ContactName
        eventArgs.get_menu().get_items().getItem(2).get_element().style.display = "none";
    }
}