'Declaration
 
Protected Overrides Sub OnItemAdding( _
   ByVal index As Integer, _
   ByVal item As MergedHeader _
) 

'Usage
 
Dim instance As MergedHeaderCollection
Dim index As Integer
Dim item As MergedHeader
 
instance.OnItemAdding(index, item)

protected override void OnItemAdding( 
   int index,
   MergedHeader item
)

Parameters

index

item

Target Platforms: Windows 11, Windows, 10, 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

MergedHeaderCollection Class
MergedHeaderCollection Members
Base Implementation in OnItemAdding