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)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public event RoutedEventHandler Collapsed
/** @event */
public void add_Collapsed (RoutedEventHandler value)

/** @event */
public void remove_Collapsed (RoutedEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
<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.

<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
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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