1:  Private Sub Logoff()

   2:      Try

   3:          'Remove user from cache

   4:          If Me.User IsNot Nothing Then

   5:              DataCache.ClearUserCache(Me.PortalSettings.PortalId,

   6:                  Context.User.Identity.Name)

   7:          End If

   8:   

   9:          Dim objPortalSecurity As New PortalSecurity

  10:          objPortalSecurity.SignOut()

  11:   

  12:          ' clear out Session variables

  13:          Session.Abandon()

  14:   

  15:      Catch exc As Exception    'Page failed to load

  16:          ProcessPageLoadException(exc)

  17:      End Try

  18:  End Sub