C# currency converter

C# currency converter 

 

namespace CurrencyConverter

{

    public partial class Form2 : Form

    {

        public Form2()

        {

            InitializeComponent();

            loading();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            String one = comboBox1.SelectedItem.ToString();

            String two = comboBox2.SelectedItem.ToString();

            int three = Int32.Parse(textBox3.Text);

            ServiceReference1.Currency cd = (ServiceReference1.Currency)Enum.Parse(typeof(ServiceReference1.Currency), one);

            ServiceReference1.Currency cd1 = (ServiceReference1.Currency)Enum.Parse(typeof(ServiceReference1.Currency), two);

        

            ServiceReference1.CurrencyConvertorSoapClient ws = new ServiceReference1.CurrencyConvertorSoapClient("CurrencyConvertorSoap");

            double ds = ws.ConversionRate(cd, cd1);

            double result = ds * three;

            label5.Text = result.ToString();

        }

        public void loading()

        {

            foreach (var item in Enum.GetValues(typeof(ServiceReference1.Currency)))

            {

                comboBox1.Items.Add(item);

                comboBox2.Items.Add(item);

            }

        }

    }

}