VirtualizingStackPanel.ViewportHeight Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets a value that contains the vertical size of the viewport (visible area) of the content.

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


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

Property Value

Type: System.Double
A Double that represents the vertical size of the viewport (visible area) of the content, in pixels. The default is 0.




The following illustration shows an example of a viewport.

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.