private bool ValidatePasswords()
        {
            bool result;

            try{
                var validator =
                    ChangePasswordValidator.CreateValidator(NewPasswordTextBox.Text, RenewPasswordTextBox.Text);
                validator.Validate();
                result = true;
            }
            catch (Exception ex) {
                MessageBox.Show(ex.Message, "Atención", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                result = false;
            }

            return(result);
        }