public bool Add(string username, string password) { if (string.IsNullOrEmpty(username)) { throw new ArgumentNullException(nameof(username)); } if (string.IsNullOrEmpty(password)) { throw new ArgumentNullException(nameof(password)); } if (this.User != "admin") { return(false); } if (Bus.Exists <SampleUser>("Username", username)) { return(false); } return(Bus.AddAnonymous <SampleUser>(new { username, password }) > 0); }