public void ConfirmCommandMethod(object o)
        {
            ManageAccount manage   = new ManageAccount();
            PasswordBox   pb       = (PasswordBox)o;
            string        username = Username;
            string        password = pb.Password;
            bool          valid    = manage.AddAccount(username, password);

            if (valid)
            {
                this.caller.GoBackMethod();
            }
        }