Expander.Collapsed Event

Reference

Definition

Namespace:: System.Windows.Controls

Assembly:: PresentationFramework.dll

Important

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

public:
 event System::Windows::RoutedEventHandler ^ Collapsed;

public event System.Windows.RoutedEventHandler Collapsed;

member this.Collapsed : System.Windows.RoutedEventHandler

Public Custom Event Collapsed As RoutedEventHandler

Event Type

RoutedEventHandler

Examples

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

myExpander.Collapsed += new RoutedEventHandler(expanderHasCollapsed);

AddHandler myExpander.Collapsed, AddressOf 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
}

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

Remarks

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

Routed Event Information

Item	Value
Identifier field	CollapsedEvent
Routing strategy	Bubbling
Delegate	RoutedEventHandler

Applies to

Produkt	Versioner
.NET Framework	3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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