? Response.Redirect() from a class in App_Code ?

I have a function in a class in App_Code which I would like to use to send users to another page. Previously this code was located in the code-behind of several aspx pages. VS2005 was refusing to auto-complete my attempts at typing "response.redirect" when I realized the obvious: there is no HttpResponse to work with. How do I get around this? Am I forced to pass a Page to this function to access its HttpResponse?

 

HttpContext.Current.Response.Redirect("~/");