Syntax
| Visual Basic (Declaration) | |
|---|---|
Protected Overridable Sub OnTextChanging( _ ByVal e As TextChangingEventArgs _ ) | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim instance As EditBase Dim e As TextChangingEventArgs instance.OnTextChanging(e) | |
| C# | |
|---|---|
protected virtual void OnTextChanging( TextChangingEventArgs e ) | |
Parameters
- e
- The TextChangingEventArgs instance that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate.
The OnTextChanging 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 OnTextChanging in a derived class, be sure to call the base class's OnTextChanging method so that registered delegates receive the event.
Requirements
Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8