or
-- ItemDataBound Event
ToolTipManager1.TargetControls.Add(btnbooking.ClientID, btnbooking.Text, true);ToolTipManager2.TargetControls.Add(btnReference.ClientID, btnReference.Text, true);protected void OnAjaxUpdateBooking(object sender, ToolTipUpdateEventArgs args) { Control ctrl = Page.LoadControl("~/ControlLibrary/Booking.ascx"); args.UpdatePanel.ContentTemplateContainer.Controls.Add(ctrl); AppWeb.ControlLibrary.BookingDetails booking = (AppWeb.ControlLibrary.BookingDetails)ctrl; WTButton btnClose = (WTButton)ctrl.FindControl("btnclose"); if (btnClose != null) btnClose.OnClientClicked = "CloseTooltipManager"; } protected void OnAjaxUpdateReference(object sender, ToolTipUpdateEventArgs args) { Control ctrl = Page.LoadControl("~/ControlLibrary/Reference.ascx"); args.UpdatePanel.ContentTemplateContainer.Controls.Add(ctrl); AppWeb.ControlLibrary.DualDetails dual = (AppWeb.ControlLibrary.DualDetails)ctrl; dual.PageType = ApptType.EXPORT_DROPOFF; dual.lGateApptAssoc_Id = Convert.ToInt64(args.Value); WTButton btnClose = (WTButton)ctrl.FindControl("btnclose"); if (btnClose != null) btnClose.OnClientClicked = "CloseTooltipManager"; }-- Javascript methodfunction CloseTooltipManager(sender, args) { var controller = Telerik.Web.UI.RadToolTipController.getInstance(); var tooltip = controller.get_activeToolTip(); if (tooltip) { tooltip.hide(); } }