Thanks for getting back to me and for the requested details.
In this scenario a ListBox
control is not suitable since it always displays items as they appear in the source. In other words, you cannot visually reorder items without changing their position in the data source.
A possible solution would be to use the Item Animations
feature and implement an animation that slides the item in a vertical manner and whenever an item is checked - remove it from the source collection so that the animation is triggered.
Another approach would be to use a simple stack panel and display a portion of all available items by allowing the users to browse through items with navigation buttons. You can then again add whatever animation you need without worrying about messing with a ListBox's UI virtualization mechanism.
the Telerik team
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