Way back when, I talked about keeping parent tabs highlighted when on a sub-tab page.
This worked fine and dandy for one set of sub-tabs, but what if we wanted sub-tabs under sub-tabs?

 This is what I orignally had coded...

  Dim node As SiteMapNode = SiteMap.CurrentNode
  If Not node Is Nothing 
	AndAlso Not node.ParentNode.Equals(node.RootNode) 
	AndAlso node.ParentNode IsNot Nothing Then
	For Each item As MenuItem In mnuMenu.Items
	    If item.DataPath = node.ParentNode.Key Then
item.Selected = True
	    End If
	Next
  End If

Now I just call a procedure to do this recursively...

  Private Sub SelectMenuItem(ByVal node As SiteMapNode)
      If node.ParentNode IsNot Nothing AndAlso 
	Not node.ParentNode.Equals(node.RootNode) Then
	    For Each item As MenuItem In mnuMenu.Items
	        If item.DataPath = node.ParentNode.Key Then
item.Selected = True
	            ' we found an item to select, 
		   ' do not need to look any more
		   Exit Sub
	        End If
	    Next
	    ' have not found a menu item to select yet
	    ' call the process again with a new node
SelectMenuItem(node.ParentNode)
      End If
  End Sub

With this we can now have as many sub-tabs as we want.

One thing to note though... 
I have to include each page in the web.sitemap file for this to work like I want it to.

Cheers

Jason McEvoy
Web Application / Developer