UpDownBase.OnTextBoxLostFocus Method

Raises the LostFocus event.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

protected virtual void OnTextBoxLostFocus (
	Object source,
	EventArgs e
protected void OnTextBoxLostFocus (
	Object source, 
	EventArgs e
protected function OnTextBoxLostFocus (
	source : Object, 
	e : EventArgs
Not applicable.



The source of the event.


An EventArgs that contains the event data.

This method validates the text in the text box portion of the control when the spin box (also known as an up-down control) loses focus.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnTextBoxLostFocus 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 OnTextBoxLostFocus in a derived class, be sure to call the base class's OnTextBoxLostFocus method so that registered delegates receive the event.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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