Information regarding where the the layer needs to be added. pDestination can be a Map or a GroupLayer.
[Visual Basic .NET] Public Sub SetDestinationInfo ( _ ByVal atIndex As Integer, _ ByVal pDestinationMap As IMap, _ ByVal pDestinationGroup As Object _ )
[C#] public void SetDestinationInfo ( int atIndex, IMap pDestinationMap, object pDestinationGroup );
Product Availability
Available with ArcGIS Desktop.