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Window.Top Property

Gets or sets the position of the window's top edge, in relation to the desktop.

Namespace:  System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[TypeConverterAttribute("System.Windows.LengthConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
public double Top { get; set; }
<object Top="double" .../>

Property Value

Type: System.Double
The position of the window's top, in logical units (1/96").

Identifier field

TopProperty

Metadata properties set to true

None

When the Window is maximized or minimized, this value represents the top edge of the restore point for the Window.

This property cannot be set through a style.

If you do not specify a value, Top is set to the system default value. You can also specify the system default value by setting Top to NaN. Neither NegativeInfinity nor PositiveInfinity is a valid value for Top.

NoteNote

You cannot set or get this property when a window is hosted in a browser.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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