private void txtOrderNumber_TextChanged(object sender, EventArgs e) { int number = 0; if ((txtOrderId.Text != string.Empty) && (!int.TryParse(txtOrderId.Text, out number))) { MessageBox.Show("Please enter a valid Order ID"); } else if (txtOrderId.Text == string.Empty) { return; } else { _presenter.txtOrderNumber_TextChanged(); } }
private void txtOrderNumber_TextChanged(object sender, EventArgs e) { _presenter.txtOrderNumber_TextChanged(); }