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FrameworkElement.SizeChanged Event

Occurs when either the ActualHeight or the ActualWidth properties change value on this element.

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

'Declaration
Public Event SizeChanged As SizeChangedEventHandler
'Usage
Dim instance As FrameworkElement 
Dim handler As SizeChangedEventHandler 

AddHandler instance.SizeChanged, handler
<object SizeChanged="SizeChangedEventHandler" .../>

Identifier field

SizeChangedEvent

Routing strategy

Direct

Delegate

SizeChangedEventHandler

Direct routed events do not follow a route, they are only handled within the same element on which they are raised. Direct routed events do support other routed event behavior: they support an accessible handlers collection and can be used as an EventTrigger in a style.

The layout system reads properties within the SizeChangedEventArgs argument class of this event, to determine whether the reported size changes should be considered significant. This allows the layout system or your control-specific layout implementations to avoid forcing a layout change due to visually imperceptible differences between old and new height or width values. The imperceptible differences might be due to rounding or same-result calculations of a floating-point data types.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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