// PUT api/Authorization_user/5
        public HttpResponseMessage PutAuthorization_user(int id, Authorization_user authorization_user)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            if (id != authorization_user.Id)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }

            db.Entry(authorization_user).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException ex)
            {
                return Request.CreateErrorResponse(HttpStatusCode.NotFound, ex);
            }

            return Request.CreateResponse(HttpStatusCode.OK);
        }
 // POST api/Authorization_user
 public HttpResponseMessage PostAuthorization_user(Authorization_user authorization_user)
 {
     if (ModelState.IsValid)
     {
         //db.Аuthorizations.Add(аuthorization);
         // db.SaveChanges();
         String res = db.Cheked_Login(authorization_user);
         HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, res);
         // response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = аuthorization.Id }));
         return response;
     }
     else
     {
         return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
     }
 }
        public String Cheked_Login(Authorization_user obj)
        {
            String info = "0";
               using (var connection1 = new SqlConnection(ConfigurationManager.ConnectionStrings["MSSQL"].ToString()))
               {
               connection1.Open();
               using (var command1 = new SqlCommand(String.Format(@"Select ID_USER_proect
                                                    From Registration
                                                    Where Login = '******' AND  Password = '******'")))
               {

                   command1.Connection = connection1;
                   using (var reader = command1.ExecuteReader())
                   {

                           if (reader.Read())
                           {
                               info = (reader["ID_USER_proect"].ToString());
                           }
                    }
               }
               }
               return info;
        }