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Expander.Collapsed Event

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

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

Syntax

C++

public event RoutedEventHandler Collapsed

XAML Attribute Usage

<object Collapsed="RoutedEventHandler" .../>

Routed Event Information

Identifier field	CollapsedEvent
Routing strategy	Bubbling
Delegate	RoutedEventHandler

Remarks

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

Examples

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


myExpander.Collapsed += new RoutedEventHandler(expanderHasCollapsed);

XAML


<Expander Name ="myExpander" Collapsed="expanderHasCollapsed" 
          Header ="expanderTitle" Content="expanderContent"/>

The following example shows how to define the event handler.


private void expanderHasCollapsed(object sender, RoutedEventArgs args)
{
    //Do something when the Expander control collapses
}

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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.

Reference

Expander Class

System.Windows.Controls Namespace

Expanded

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