Insert data into sql server [Resolved]

I am trying to insert data from window phone into sql server using WCF.

But the data does not insert into database, any wrong with my coding?

private void button1_Click(object sender, RoutedEventArgs e)
        {
            string empid = textBox1.Text;
            string fname = textBox2.Text;
            string lname = textBox3.Text;
            Service1Client proxy = new Service1Client();
            proxy.AddEmployeeCompleted += new EventHandler<AddEmployeeCompletedEventArgs>(proxy_AddEmployeeCompleted);
            proxy.AddEmployeeAsync(empid, fname, lname);
        }

        private void proxy_AddEmployeeCompleted(object sender, AddEmployeeCompletedEventArgs e)
        {
            bool bb = Convert.ToBoolean(e.Result);
        }

[Resolved]