RichTextBox.OnTextInputUpdate Method

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Called before the TextInputUpdate event occurs.

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

Syntax

'Declaration
Protected Overrides Sub OnTextInputUpdate ( _
    e As TextCompositionEventArgs _
)

protected override void OnTextInputUpdate(
    TextCompositionEventArgs e
)

Parameters

• e
  Type: System.Windows.Input.TextCompositionEventArgs
  The data for the event.

Remarks

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

Notes to Inheritors

When overriding the OnTextInputUpdate method in a derived class, be sure to call the base class’s OnTextInputUpdate 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.

See Also

Reference

RichTextBox Class

System.Windows.Controls Namespace