private void Record(object sender, EventArgs args)
 {
     if (mViewModel.ValidateModel())
     {
         mModel.Record();
         UpdateView_PaymentDetails();
         MessageBox.Show("Customer Record Saved!");
     }
 }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            ReviseModel();

            OpResult result = mModel.Record();

            if (!result.IsValid)
            {
                DialogResult = DialogResult.None;
                MessageBox.Show(result.Error);
            }
        }