RichTextBox.OnLostFocus Method

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

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.