I've tried to use the following in the grdScoreCardDashboard.ItemCommand event for the Linkbutton clicked for the export but it didn't have an effect.
Me.RadAjaxManager1.EnableAJAX = False.
I'm using a <CommandItemTemplate> for the Export link buttons so not sure how I'd be able to use the "ScriptManager.GetCurrent(Page).RegisterPostBackControl(btnExport)" option or the "btnExcelSinNumbers.Attributes.Add("onclick", String.Format("realPostBack('{0}', ''); return false;", btnExcelSinNumbers.UniqueID))" in the Page_Load event.