alguien por favor redireccionar cuando termine la session

[smokesoft]

'La clase base

Public Class PaginaBase
Inherits System.Web.UI.Page

Protected Overridable Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Response.AddHeader("Refresh", Convert.ToString((Session.Timeout * 60) + 5))

If IsNothing(Session("SesionActiva")) Then
Response.Redirect("Expirado.aspx")
End If
End Sub
End Class


'Pagina de Inicio
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Session("SesionActiva") = Session.SessionID

Response.Redirect("Pagina2.aspx")
End Sub

'Pagina 2
Public Class WebForm1
Inherits PaginaBase

Protected Overrides Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Controla el fin de session
MyBase.Page_Load(sender, e)

'todo: hacer algo
End Sub
End Class