Syntax
| Visual Basic (Declaration) | |
|---|---|
Protected Overrides Sub OnValidating( _ ByVal e As CancelEventArgs _ ) | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim instance As EditBase Dim e As CancelEventArgs instance.OnValidating(e) | |
| C# | |
|---|---|
protected override void OnValidating( CancelEventArgs e ) | |
Parameters
- e
- A System.ComponentModel.CancelEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate.
The OnValidating 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 OnValidating in a derived class, be sure to call the base class's OnValidating 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