I dynamically load user control as panelBar item. And with the RadAjax proxy in Manager_AjaxRequest I am trying to update Text box and a label on the user control. Text box gets updated but not a label. I have added both controls in Ajax request update controls Mark up.

<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:CNIPanelTestConnectionString %>"
SelectCommand="SELECT [TabName], [TabID] FROM [TabType]">
</asp:SqlDataSource>
<telerik:RadTabStrip ID="RadTabStrip1" runat="server"
DataSourceID="SqlDataSource1" DataTextField="TabName" DataValueField="TabID"
Skin="Blue" EnableEmbeddedSkins="False">
</telerik:RadTabStrip>

I have 2 appointments in my scheduler, one with recurrence , one without.
Moving (dragging) the appointment with recurrence is no problem. Moving an appointment results in this error :
Message: Sys.WebForms.PageRequestManagerServerErrorException: Error end date '2010.07.26 13:00:00' is born before start date '2010.07.27 11:00:00'.
It seems that it's only moving the startdate of an appointment.
I attached OnClientAppointmentMoveEnd and I can see it's entering this function. Then I tried to manually change the end date of this appointment, but without any effect.
1.var apt = args.get_appointment(); 2.apt.set_end(new Date(2010, 7, 27, 13, 0, 0, 0)); 3.apt.get_radScheduler().updateAppointment(apt); 4.args.set_cancel(true);Any tips?