[Solved] using RadAjaxManager with scheduler

[Raul]

my problem is when the user created an appointment and hit refresh (F5) the appointment is Re-created, i was told to use the AjaxManager so here is my code

<telerik:RadScriptManager ID="ScriptManager1" runat="server"
        EnableTheming="True">
    </telerik:RadScriptManager>
    
    <telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server">
    </telerik:RadStyleSheetManager>
    
    <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1" />
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="Panel1">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="ConfiguratorPanel1" />
                        <telerik:AjaxUpdatedControl ControlID="RadScheduler1" LoadingPanelID="RadAjaxLoadingPanel1" />
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
    <telerik:RadScheduler ID="RadScheduler1" runat="server" DataEndField="End"  (not pasting the rest (usual code)

but AJAX doesnt seem to work.
i followed this example
http://demos.telerik.com/aspnet-ajax/scheduler/examples/resources/defaultcs.aspx

is there any documentation on how to use this?

Thanks