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Window.Left Property

Gets or sets the position of the window's left 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 Left { get; set; }
<object Left="double" .../>

Property Value

Type: System.Double
The position of the window's left edge, in logical units (1/96th of an inch).

Identifier field

LeftProperty

Metadata properties set to true

None

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

This property cannot be set through a style.

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

NoteNote

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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