public ActionResult Login(Kullanicilar kul)
        {
            string value = kul.ToString();

            var d = db.DANISMAN.FirstOrDefault(a => a.KUL_AD == kul.Kul_ad && a.SİFRE == kul.Sifre);
            var o = db.OGRENCİ.FirstOrDefault(a => a.KUL_AD == kul.Kul_ad && a.SİFRE == kul.Sifre);

            if (d != null && o == null)
            {
                try
                {
                    LoginBilgi loginBilgi = new LoginBilgi();
                    loginBilgi.Ad1      = d.AD;
                    loginBilgi.Soyad1   = d.SOYAD;
                    loginBilgi.Unvan1   = d.UNVAN;
                    loginBilgi.BirimId1 = (int)d.BIRIMID;
                    loginBilgi.Rolid    = (int)d.ROLID;
                    loginBilgi.Resim    = d.image;
                    loginBilgi.cinsiyet = (bool)d.cinsiyet;
                    // loginBilgi.Ad1 = per.AD;


                    string LogBil = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(loginBilgi);

                    FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
                        1,
                        d.AD,
                        DateTime.Now,
                        DateTime.Now.AddHours(2),
                        false,
                        LogBil,
                        FormsAuthentication.FormsCookiePath);
                    string encriptedTicked = FormsAuthentication.Encrypt(ticket);

                    HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encriptedTicked);
                    cookie.HttpOnly = true;
                    Response.Cookies.Add(cookie);

                    return(RedirectToAction("Index", "Home"));
                }
                catch (Exception)
                {
                    throw;
                }
            }
            else if (o != null && d == null)
            {
                try
                {
                    LoginBilgi loginBilgi = new LoginBilgi();
                    loginBilgi.Ad1      = o.OGR_AD;
                    loginBilgi.Soyad1   = o.OGR_SOYAD;
                    loginBilgi.Resim    = o.image;
                    loginBilgi.BirimId1 = (int)o.OGR_BOLUM;
                    var ogr_rolid = db.ROL.FirstOrDefault(a => a.ROLADI.Equals("Öğrenci"));
                    loginBilgi.Rolid    = ogr_rolid.ID;
                    loginBilgi.cinsiyet = (bool)o.Cinsiyet;

                    string LogBil = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(loginBilgi);

                    FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
                        1,
                        o.OGR_AD,
                        DateTime.Now,
                        DateTime.Now.AddHours(2),
                        false,
                        LogBil,
                        FormsAuthentication.FormsCookiePath);
                    string encriptedTicked = FormsAuthentication.Encrypt(ticket);

                    HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encriptedTicked);
                    cookie.HttpOnly = true;
                    Response.Cookies.Add(cookie);
                    return(RedirectToAction("Index", "Home"));
                }
                catch (Exception)
                {
                    throw;
                }
            }
            else
            {
                ViewBag.Mesaj = "Kullanıcı adı veya şifre geçersizdir";
                return(View());
            }
        }