<%@ Page Language="vb" EnableSessionState="ReadOnly" %>
Sub Page_Load()
If Session.IsReadOnly Then
Message.Text = "The current Session (SessionID: " & _
Session.SessionID & ") is read-only for this page."
Else
Session("foo") = "foo"
Message.Text = "The current Session (SessionID: " & _
Session.SessionID & ") can be written to from this page."
End If
End Sub