According to MSDN - Panel.InternalChildren Property:

Classes that are derived from Panel should use this property, instead of the Children property, for internal overrides such as MeasureCore and ArrangeCore.

So, this is really a 2 part question:

  1. If I create a Panel of my own, FooPanel, which derives from Panel, I can't seem to override MeasureCore or ArrangeCore. I'm not sure why that statement is even there. I can, however, override MeasureOverride and ArrangeOverride. So, I wonder if I still need to use the InternalChildren property for these 2 methods.

  2. What is the real difference between the Children property and the InternalChildren property?

wpf panel children measureoverride arrangeoverride
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