Answer by Nick Kahn for How can I grab the current url and assign it to a variable using vb and asp.net?

VB.NET'static variable

Private Shared prevPage As String = String.EmptyProtected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load        If (Not IsPostBack) Then            prevPage = Request.UrlReferrer.ToString()        End IfEnd Sub