Thank you for writing.
Such a behavior is not intended in RadSlideView's design. However, you can manually handle the ManipulationDelta event and prevent the sliding. Here's one way to do it:
sender, System.Windows.Input.ManipulationDeltaEventArgs e)
// get the first item from your items collection
.slideView.SelectedItem == firstItem)
(e.CumulativeManipulation.Translation.X > 0)
// if your SlideView is with vertical orientation, you will need to check if Y (and not X) > 0
// use similar approach for handling the manipulation when the last item is selected
I hope this information helps.
the Telerik team
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