private void F2CBtn_Click(object sender, EventArgs e)                                // button function for converting Fahrenheit to Celcius
        {
            TempCovService.Service1Client tempService = new TempCovService.Service1Client(); // Initializing a TempCovService Client Object
            int C = Int32.Parse(textBox2.Text);                                              // converting the Fahrenheit value in "textBox2" text to integer format
            int F = tempService.F2c(C);                                                      // converting the Fahrenheit to Celcius

            label4.Text = F.ToString();                                                      // displaying the converted value to "label4" label
        }