I am creating a ExplorerBar at runtime and adding a group and item to it.  I also add an event handler as shown.  When I execute the application, the event doest get fired.  How do I get this to work?   Due to the design of the application, I need to do this dynamically.

Private Sub AddNavPanel()

'Create explorer bar
   Dim ctlLeftNavSubPanel As New UltraWinExplorerBar.UltraExplorerBar
   ctlLeftNavSubPanel.Style = UltraExplorerBarStyle.VisualStudio2005Toolbox
    ctlLeftNavSubPanel.GroupSettings.Style = Infragistics.Win.UltraWinExplorerBar.GroupStyle.SmallImagesWithText

'Add a group to it
Dim ctlGroupItemsList As New UltraWinExplorerBar.UltraExplorerBarGroup
ctlGroupItemsList.Text = "Sub Group 1"
ctlGroupItemsList.Key = "Sub Group 1"
ctlLeftNavSubPanel.Groups.Add(ctlGroupItemsList)

'Add items to the group
Dim ctlGroupItem As New UltraWinExplorerBar.UltraExplorerBarItem
ctlGroupItem.Text = "Item 1"
ctlGroupItem.Key = "Item 1"
ctlGroupItemsList.Items.Add(ctlGroupItem)

'Add event handler
 AddHandler ctlLeftNavSubPanel.ItemClick, AddressOf Me.ctlLeftNavSubPanel_ItemClick

 End sub

Private Sub ctlLeftNavSubPanel_ItemClick(ByVal sender As System.Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.ItemEventArgs)
        Dim s As String
        s = e.Item.Text
    End Sub