/// <summary>
 /// Login waiter
 /// </summary>
 /// <param name="login"></param>
 /// <param name="password"></param>
 /// <returns></returns>
 public bool LogInUser(string login, string password)
 {
     try
     {
         waiterUserContext = WaiterDataAccess.LogIn(login, ClassLib.DataStructures.HashClass.CreateFirstHash(password, login));
     }
     catch
     {
         throw new Exception("Problem with DB");
     }
     return(waiterUserContext != null);
 }