If the RadTimePicker is located inside an ItemTemplate, you can set width and height to the TimeView control declaratively, so no event is needed:
<telerik:RadTimePicker ID="RadTimePicker1" runat="server">
<TimeView runat="server" Height="100px" Width="100px"
When Width and/or Height for the TimeView are set, the scrollbars will appear automatically.
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the Telerik team
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