private void QuantityPlusButton_Click(object sender, RoutedEventArgs e) { if (!ValidationAssist.GetHasError(QuantityTextBox)) { Value++; QuantityTextBox.Text = Value.ToString(); } }
private void NumberMinusButton_Click(object sender, RoutedEventArgs e) { if (Value > 0 && !ValidationAssist.GetHasError(QuantityTextBox)) { Value--; QuantityTextBox.Text = Value.ToString(); } }