private void btnGetMessage_Click(object sender, EventArgs e)
 {
     try
     {
         if (client.State == System.ServiceModel.CommunicationState.Faulted)
         {
             client = new PracticeWCFService.PracticeServiceClient();
         }
         lblMessage.Text = client.GetMessage(txtMessage.Text);
     }
     catch (Exception ex)
     {
         lblMessage.Text = ex.Message.ToString();
     }
 }
 public Form1()
 {
     InitializeComponent();
     client = new PracticeWCFService.PracticeServiceClient();
 }