Newly created Data Frame will not allow user to show Properties dialog in ArcMap

Question

I have code that creates new Data Frames, using IMaps.Create() and when you right click->Properties on the new Data Frames in ArcMap TOC, it never opens up the Properties window?!  Anyone know whats going on here, have I missed something in the code?

The code is fairly basic:

internal static void AddNewMap(string mapName)

{

//Makes the new map the active focus map too.

IMxDocument mxd = ArcMap.Document;

IMaps maps = mxd.Maps;

IMap map = null;

if (maps.Count == 1 && maps.Item[0].Name != "Foo Name")

{

map = maps.Item[0];

}

else

{

map = maps.Create();

maps.Add(map);

}

map.Name = mapName;

IActiveView pActiveView = ArcMap.Document.ActiveView;

if (pActiveView is IPageLayout)

ArcMap.Document.ActiveView.FocusMap = map;

else

ArcMap.Document.ActiveView = (IActiveView)map;

ArcMap.Document.UpdateContents();

}

SimonEarnshaw · Accepted Answer

I figured it out now.  Basically missing this line of code:

ArcMap.Document.PageLayout.ReplaceMaps(maps);