Adds a layer to this map topology. All existing topology elements will become invalid.
[Visual Basic .NET] Public Sub AddLayer ( _ ByVal Layer As IFeatureLayer _ )
[C#] public void AddLayer ( IFeatureLayer Layer );
Product Availability
Available with ArcGIS Desktop.
Remarks
Use AddLayer to append additional editable feature layers to the map. Only layers that implement ITopologyClass can be added to a MapTopology.