VirtualizingStackPanel.ExtentHeight Property    
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets a value that contains the vertical size of the extent.
public:
 property double ExtentHeight { double get(); };public double ExtentHeight { get; }member this.ExtentHeight : doublePublic ReadOnly Property ExtentHeight As DoubleProperty Value
A Double that represents the vertical size of the extent. The default is 0.0.