public ActionResult SignIn(SigninDto Vm) { var db = new StatementDbContext(); var user = db.Users .Where(a => a.UserName == Vm.Username && a.Password == Vm.Password) .FirstOrDefault(); if (user == null) { ModelState.AddModelError("Username", "Username or Password is incorrect ...!"); return(View()); } Session["UserId"] = user.Id; return(RedirectToAction("List", "Customer")); }