protected void resta(object sender, EventArgs e)
{
servicio = new ServiceReference1.CalculatorSoapClient();
int n1 = int.Parse(txtn1.Text);
int n2 = int.Parse(txtn2.Text);
lblresultado.Text = servicio.Subtract(n1, n2).ToString();
}
protected void suma(object sender, EventArgs e)
{
servicio = new ServiceReference1.CalculatorSoapClient();
int n1 = int.Parse(txtn1.Text);
int n2 = int.Parse(txtn2.Text);
//int n1 = Convert.ToInt32(txtn1.Text);
//int n2 = Convert.ToInt32(txtn2.Text);
lblresultado.Text = servicio.Add(n1, n2).ToString();
}