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Okay, this post isn’t really about creating a full blown Natural User Interface (NUI)…
I just wanted to jump on the NUI bandwagon while it’s still the cool new thing!
I had some extra time this weekend, so I refactored one of my early looping panels into something that might be useful for a wider audience.
This post also includes a simple demo showing how the Loop Panel can be used as the items host of a custom List Box class.
This demo brings the same type of natural user interaction to desktop WPF (via mouse) that you might find on Surface.
(This just means a child can be whatever size it desires in the stacking direction, but it is constrained in the nonstacking direction.) To support these layout requirements, it was clear that I would need an property.
Of course, there are some key differences between a Loop Panel and a Stack Panel.
For example, a Stack Panel arranges its children sequentially, beginning with the first child and stacking subsequent children one right after the other.
However, a Loop Panel really eases the concept of a “first” child. The pivotal child is the element around which the remaining children are arranged. Then its neighboring siblings (the subsequent and preceding members of the children collection) are placed, working away from the pivotal child in both directions until all remaining visible children are arranged.