'Declaration
 
Protected Overridable Sub OnSet( _
   ByVal index As Integer, _
   ByVal oldValue As Object, _
   ByVal newValue As Object, _
   ByRef cancel As Boolean _
) 

'Usage
 
Dim instance As ListBase
Dim index As Integer
Dim oldValue As Object
Dim newValue As Object
Dim cancel As Boolean
 
instance.OnSet(index, oldValue, newValue, cancel)

protected virtual void OnSet( 
   int index,
   object oldValue,
   object newValue,
   ref bool cancel
)

Parameters

index

The zero-based index at which oldValue can be found.

oldValue

The value to replace with newValue.

newValue

The new value of the item at index.

cancel

true to cancel the operation; false otherwise.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ListBase Class
ListBase Members