public ActionResult DoLogin(UserDetails usr)
 {
     if (ModelState.IsValid)
     {
         EmployeeBussinesLayer bal = new EmployeeBussinesLayer();
         if (bal.IsValidUser(usr))
         {
             FormsAuthentication.SetAuthCookie(usr.UserName, false);
             return(RedirectToAction("Index", "Employee"));
         }
         else
         {
             ModelState.AddModelError("CredentialError", "Invalid Username or Password");
             return(View("Login"));
         }
     }
     else
     {
         return(View("Login"));
     }
 }