Article
11/18/2011

AutoCompleteBox.OnDropDownClosed Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Namespace: System.Windows.Controls
Assembly: System.Windows.Controls.Input (in System.Windows.Controls.Input.dll)

Syntax

'Declaration
Protected Overridable Sub OnDropDownClosed ( _
    e As RoutedPropertyChangedEventArgs(Of Boolean) _
)

protected virtual void OnDropDownClosed(
    RoutedPropertyChangedEventArgs<bool> e
)

Parameters

e
Type: System.Windows.RoutedPropertyChangedEventArgs<Boolean>
A RoutedPropertyChangedEventArgs<T> which contains the event data.

Remarks

The DropDownClosed occurs when the IsDropDownOpen property has changed from true to false.

Raising an event invokes the event handler through a delegate. The OnDropDownClosed method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnDropDownClosed in a derived class, be sure to call the base class’s OnDropDownClosed method so that registered delegates receive the event.

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.