VirtualizingStackPanel.ExtentHeight Property

Gets a value that contains the vertical size of the extent.

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)


Public ReadOnly Property ExtentHeight As Double
public double ExtentHeight { get; }

Property Value

Type: System.Double
A Double that represents the vertical size of the extent, in pixels. The default is 0.




Extent refers to the size of the entire list of data items, assuming all items have an item container. It influences the look and behavior of scrollbars that scroll the items host’s content.

The following illustration shows an example of extent height.

Graphically shows virtualization definitions.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.