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RichTextBox.OnTextInputStart Method

Silverlight

Called before the TextInputStart event occurs.

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)
'Declaration
Protected Overrides Sub OnTextInputStart ( _
	e As TextCompositionEventArgs _
)

Parameters

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

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

Notes to Inheritors

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

Silverlight

Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

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

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