Add project files.

Controllers/loginController.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.Mvc;
+using System.Web.Security;
+using atakanozbancom.Models.classes;
+
+namespace atakanozbancom.Controllers
+{
+    public class loginController : Controller
+    {
+        // GET: Login
+        Context c = new Context();
+        public ActionResult Index()
+        {
+            return View();
+        }
+
+        [HttpPost]
+        public ActionResult Index(admin ad) 
+        {
+            var bilgiler = c.admins.FirstOrDefault(x => x.username == ad.username && x.password == ad.password);
+            if (bilgiler != null) 
+            {
+                FormsAuthentication.SetAuthCookie(bilgiler.username, false);
+                Session["username"] = bilgiler.username.ToString();
+                return RedirectToAction("Index", "admin");
+            }
+            else
+            {
+                return View();
+            }
+        }
+
+        public ActionResult logout()
+        {
+            FormsAuthentication.SignOut();
+            return RedirectToAction("index", "login");
+        }
+    }
+}