or
RadScheduler1.ShowAdvancedEditForm(appt)<script type="text/javascript">
// Ugly hack var nonIEScrollPosition = 0; var IEScrollPosition = 0; function setScrollPosition(sender, args) { nonIEScrollPosition = document.body.scrollTop; IEScrollPosition = document.documentElement.scrollTop; } function updateScrollPosition(sender, args) { document.body.scrollTop = nonIEScrollPosition; document.documentElement.scrollTop = IEScrollPosition; } </script> <telerik:RadAjaxManager ID="ajaxManager" runat="server"> <ClientEvents OnRequestStart="updateScrollPosition"></ClientEvents> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="ddlTMS"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="ddlBuNo" LoadingPanelID="radLoadingPanel" /> <telerik:AjaxUpdatedControl ControlID="lblCostCenter" LoadingPanelID="radLoadingPanel" /> </UpdatedControls> <telerik:RadComboBox ID="ddlTMS" Skin="Simple" DataTextField="TypeModelSeriesID" DataValueField="TypeModelSeriesID" OnClientDropDownOpening="setScrollPosition" AutoPostBack="true" runat="server"></telerik:RadComboBox> <asp:CustomValidator ID="cvTMS" Display="Dynamic" ControlToValidate="ddlTMS" ValidationGroup="Save" EnableClientScript="false" OnServerValidate="CheckTMS" runat="server"></asp:CustomValidator>