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Page.WindowWidth Property

Gets or sets the width of the host Window or NavigationWindow of a Page.

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

public double WindowWidth { get; set; }
<object WindowWidth="double" .../>

Property Value

Type: System.Double
The width of a window that directly hosts a Page.

WindowWidth is only applied when a Page is hosted directly by a window, which includes:

If a Page is hosted by a Frame, setting WindowWidth has no effect, but you can still get the value of WindowWidth.

A Page in an XAML browser application (XBAP) can only use WindowWidth to change the width of Windows Internet Explorer; the width cannot be changed by setting Width, MinWidth, or MaxWidth.

The minimum width of the Windows Internet Explorer window is 250 pixels. For browser-hosted pages, this means that the value of WindowWidth may not be applied if it would cause the total width of the Windows Internet Explorer window to be less than 250 pixels.

See How to: Set the Width of a Window from a Page.

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.

.NET Framework

Supported in: 3.5, 3.0