title: Why can't I edit my ASP.NET Web application at run time?
body: <p>Why are the code-behind pages for an ASP.NET web application locked at run time? I have older projects (probably defined as "web sites" instead of "web apps") where I can edit the code behind, refresh the browser, and see my changes. With the web app, I have to continually close and reopen the browser if I want to see my changes live. Is there a setting or something I'm missing to allow me to edit at run time, and without restarting the debugging session?</p>