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ColumnDefinition.ActualWidth Property

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

Gets a value that represents the actual calculated width of a ColumnDefinition.

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

Syntax

'Declaration
Public ReadOnly Property ActualWidth As Double
public double ActualWidth { get; }

Property Value

Type: System.Double
A Double that represents the actual calculated width in pixels. The default is 0.

Remarks

This property is a calculated value that is based on other width inputs and the layout system.

When you add or remove rows or columns, the ActualWidth for all ColumnDefinition elements and the ActualHeight of all RowDefinition elements become zero until Measure is called.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.