Canvas.MeasureOverride Method

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

Provides the behavior for the "measure" pass of Silverlight layout. 

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


Protected Overrides NotOverridable Function MeasureOverride ( _
    constraint As Size _
) As Size
protected override sealed Size MeasureOverride(
    Size constraint


  • constraint
    Type: System.Windows.Size
    The available size that this object can give to child objects. Infinity can be specified as a value to indicate that the object will size to whatever content is available.

Return Value

Type: System.Windows.Size
The size that this object determines it needs during layout, based on its calculations of child object allotted sizes.

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.