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Thickness.Top Property

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

Gets or sets the width, in pixels, of the upper side of the bounding rectangle.

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


Public Property Top As Double
public double Top { get; set; }

Property Value

Type: System.Double
A Double that represents the width, in pixels, of the upper side of the bounding rectangle for this instance of Thickness. The default is 0.


You can set this value in XAML, but only as part of the attribute syntax for properties that take a Thickness, or as initialization text of a Thickness object element. See XAML sections and Remarks sections of Thickness.

Although the type of the property values of a Thickness is Double, you generally should use integer values. For more information, see Layout Rounding.

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.