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Gets or sets the position of the window's left edge, in relation to the desktop. This is a dependency property.

Namespace: System.Windows
Assembly: PresentationFramework (in presentationframework.dll)
XML-Namespaces:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

[TypeConverterAttribute("System.Windows.LengthConverter, PresentationFramework, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")] 
public double Left { get; set; }
/** @property */
public double get_Left ()

/** @property */
public void set_Left (double value)

public function get Left () : double

public function set Left (value : double)

<object Left="double" .../>


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

Identifier field


Metadata properties set to true


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 are valid values for Left.


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

Microsoft .NET Framework 3.0 wird unter Windows Vista, Microsoft Windows XP SP2 und Windows Server 2003 SP1 unterstützt.

.NET Framework

Unterstützt in: 3.0