How to 301 redirect in ASP.NET 4.0?

Question

I am trying to implement URL redirect for the website rather than doing it page by page. I want to do it in the global.asax file. Below is the code i have defined.

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Answer 1

Building on previous correct and helpful answers, here are a couple specific examples. Assuming you want to delete the old page (as I did), there are a couple of options.

OPTION 1: Modify the Global.asax

 void Application_BeginRequest(object sender, EventArgs e)
    {
        // Add permanent redirection for retired pages
        if (Request.Url.LocalPath.ToLower().StartsWith("/[OLD PAGE NAME]"))
        {
            Response.RedirectPermanent("/[NEW PAGE NAME]", false);
        }
    }

OPTION 2: Modify the web.config