'Declaration
 
Protected Overrides NotOverridable Sub OnMergedHeadersChanged( _
   ByVal oldMergedHeaders As MergedHeaderCollection, _
   ByVal newMergedHeaders As MergedHeaderCollection _
) 

'Usage
 
Dim instance As MergedColumnEditorControl
Dim oldMergedHeaders As MergedHeaderCollection
Dim newMergedHeaders As MergedHeaderCollection
 
instance.OnMergedHeadersChanged(oldMergedHeaders, newMergedHeaders)

protected override void OnMergedHeadersChanged( 
   MergedHeaderCollection oldMergedHeaders,
   MergedHeaderCollection newMergedHeaders
)

Parameters

oldMergedHeaders

newMergedHeaders

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

MergedColumnEditorControl Class
MergedColumnEditorControl Members
Base Implementation in OnMergedHeadersChanged