public int AddNewUser(TriviaLib.User user)
        {
            int userId = 0;

            string query = "INSERT INTO User (Name, Password)"
                + " VALUES ('" + user.name + "','" + user.password + "');";

            this.InsertIntoDB(query);

            query = "SELECT Max(UserID) FROM User;";

            this.command.CommandText = query;
            this.connection.Open();
            this.reader = this.command.ExecuteReader();
            while (this.reader.Read())
            {
                userId = Convert.ToInt32(this.reader["Max(UserID)"]);
            }

            if (this.connection.State == System.Data.ConnectionState.Open)
            {
                this.connection.Close();
            }

            return userId;
        }
        public bool ValidateAdmin(TriviaLib.User admin)
        {
            bool result = false;

            string query = "SELECT UserID FROM User WHERE Name = '" + admin.name + "' AND Password = '******';";

            this.command.CommandText = query;
            this.connection.Open();
            this.reader = this.command.ExecuteReader();
            while (this.reader.Read())
            {
                result = true;
            }

            if (this.connection.State == System.Data.ConnectionState.Open)
            {
                this.connection.Close();
            }

            return result;
        }