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Expander.Collapsed Event

Occurs when the content window of an Expander control closes and only the Header is visible.

Namespace:  System.Windows.Controls
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 Collapsed As RoutedEventHandler
<object Collapsed="RoutedEventHandler" .../>

Identifier field

CollapsedEvent

Routing strategy

Bubbling

Delegate

RoutedEventHandler

The Collapsed event occurs when the IsExpanded property changes from true to false.

The following example shows how to specify the event handler for the Collapsed event.

		 AddHandler myExpander.Collapsed, AddressOf expanderHasCollapsed
<Expander Name ="myExpander" Collapsed="expanderHasCollapsed" 
          Header ="expanderTitle" Content="expanderContent"/>

The following example shows how to define the event handler.

		Private Sub expanderHasCollapsed(ByVal sender As Object, ByVal args As RoutedEventArgs)
			'Do something when the Expander control collapses
		End Sub

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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