Specified cast is not valid

[Li Zhou]

I am using 2010 Q1 version RadScheduler.  I am using Web service binding to a Custom SQL provider.
When I delete a recurring appointment and choose "delete only this occurance", I got javascript error  "Specified cast is not valid".

Here is my code, anyway I can fix it?  Thanks

                 <telerik:RadScheduler runat="server" ID="RadScheduler1" Skin="Office2007" ReadOnly="false"
                        Height="700px"
                        DayStartTime="07:00:00" DayEndTime="21:00:00"                    
                        FirstDayOfWeek="Sunday" LastDayOfWeek="Saturday"
                        EnableDescriptionField="true"
                        AppointmentStyleMode="Default"
                        OnNavigationComplete="RadScheduler1_NavigationComplete">
                        <AdvancedForm Modal="true" />
                        <TimeSlotContextMenuSettings EnableDefault="true" />
                        <AppointmentContextMenuSettings EnableDefault="true" />
                        <WebServiceSettings Path="~/Services/CalendarService.asmx" />
                    </telerik:RadScheduler>

[T. Tsonev]

Hello Li,

We've fixed a similar issue in the 2010 Q1 SP1 release and later. Can you please check if updating to the latest version (SP2 or the Q2 beta) helps?

Sincerely yours,
Tsvetomir Tsonev
the Telerik team