Measures the child elements of a VirtualizingStackPanel in anticipation of arranging them during the ArrangeOverride pass.
protected override Size MeasureOverride(
You cannot use methods in XAML.
An upper limit Size that should not be exceeded.
When scrolling, VirtualizingStackPanel does not grow in layout size, but effectively adds its descendants on a z-plane, which is normally clipped by a parent element (typically a ScrollContentPresenter) to the size of the stack.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.