What is the disadvantage of VirtualizingStackPanel?

Question

What is / is the main disadvantage of VirtualizingStackPanel? If this is not the case, then why is this not done as the default behavior / panel template in the ItemsControl?

Answer 1

The MSDN page in the class VirtualizingStackPanelhas the following statements:

The word “virtualization” refers to a method by which a subset of user interface (UI) elements are generated from more data elements based on which elements are visible on the screen.

and

StackPanel , , , .

VirtualizingStackPanel ListBox.

, "" StackPanel , .. . ListBox :) ; ) , , , .