ASP.NET forms authentication login button need to double click or any other second post-back to make User.Identity.IsAuthenticated=true

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ASP.NET

C#3.5

When login button pressed, after validating user credential

FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, "abc", DateTime.Now, DateTime.Now.AddMinutes(30), false, "1", FormsAuthentication.FormsCookiePath);
        string hash = FormsAuthentication.Encrypt(ticket);
        HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, hash);
        if (ticket.IsPersistent)
        {
            cookie.Expires = ticket.Expiration;
        }

        Response.Cookies.Add(cookie);

Now if do not write code Response.Redirect("Login.aspx") [as I want after successful login user should be in the same page that is Login.aspx ] after cookie add then my "LoginView" control does not recognize as Logged-In User.

If I click again on log-in button or any other control or refresh the page than "LoginView" control along with other control "LoginStatus" and "LoginName" work fine and recognize as Logged-In User. So, Is there an way just after login button press "LoginView" work fine.