Artigo
11/17/2011

RichTextBox.OnLostFocus Method

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Called before the LostFocus event occurs.

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

Syntax

'Declaration
Protected Overrides Sub OnLostFocus ( _
    e As RoutedEventArgs _
)

protected override void OnLostFocus(
    RoutedEventArgs e
)

Parameters

e
Type: System.Windows.RoutedEventArgs
The data for the event.

Remarks

The OnLostFocus method is called before any event handler for the LostFocus event is called. This method allows derived classes to handle the LostFocus event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

By default, when the RichTextBox control has lost focus, the selected text in the RichTextBox is not visible..

Notes to Inheritors

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

Version Information

Silverlight

Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

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

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