Enables you to prevent changing the selected page.
[DXCategory("Behavior")] public event LayoutTabPageChangingEventHandler SelectedPageChanging
<DXCategory("Behavior")> Public Event SelectedPageChanging As LayoutTabPageChangingEventHandler
The SelectedPageChanging event's data class is DevExpress.XtraLayout.LayoutTabPageChangingEventArgs.
The SelectedPageChanging event is raised when the selected page is about to be changed. The event parameter allows the previously and currently selected pages to be identified. To cancel changing the selected page, set the Cancel parameter to true.