How to redirect on ASP.Net Core Razor Pages

Question

I am using the new Razor Pages in ASP.Net core 2
Now I need to redirect

I tried this, but the page does not redirect:

public class IndexModel : P         


        

Answer 1

Same for pages without cs:

@page

@functions
{
    public IActionResult OnGet()
    {
        string url = "/.auth/login/aad?post_login_redirect_url=" 
          + Request.Query["redirect_url"];

        return Redirect(url);
    }
}