private void button1_Click(object sender, EventArgs e)
{
double BILLdfResult;
bool BILLdfResultSpecified;
double BILLdpResult;
bool BILLdpResultSpecified;
double BILLdtResult;
bool BILLdtResultSpecified;
server.Service1 s = new server.Service1();
s.BILLdf(out BILLdfResult, out BILLdfResultSpecified);
textBox3.Text = Convert.ToString(BILLdfResult);
s.BILLdp(out BILLdpResult, out BILLdpResultSpecified);
textBox1.Text = Convert.ToString(BILLdpResult);
s.BILLdt(out BILLdtResult, out BILLdtResultSpecified);
textBox2.Text = Convert.ToString(BILLdtResult);
}