private void getResultButton_Click(object sender, EventArgs e) { using (var client = new ParrotToPythonConverterClient()) { if (parrotsUpDown.Value == 0) { // convert pyhtons to parrots parrotsUpDown.Value = (decimal)client.ConvertPythonsToParrots((double)pythonsUpDown.Value); } if (pythonsUpDown.Value == 0) { // convert parrots to pythons pythonsUpDown.Value = (decimal)client.ConvertParrotsToPythons((double)parrotsUpDown.Value); } } }