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For example, a Stack Panel arranges its children sequentially, beginning with the first child and stacking subsequent children one right after the other.
What might make even less sense is that the Offset property is of type double.
The Loop Panel Layout Algorithm Whenever I’m creating a new panel, I start by clearly defining its layout algorithm.
This allows me to identify the exact properties that will be necessary to support the new layout.
(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.
So why would we need a double value to act as an index into a collection?
Actually, only the whole portion of the Offset value is considered when determining the index of the pivotal child.The class supports dragging its items in a manner similar to the Surface app launcher.This demo brings the same type of natural user interaction to desktop WPF (via mouse) that you might find on Surface.This allows for a balanced layout around the pivotal child.Nonvisible children (those that are outside the panel’s viewport) are then arranged using a layout rect with no size (both width and height are zero).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.