private void None_Click(object sender, RoutedEventArgs e)
 {
     dataSendingState = DataSendingState.None;
     timer.IsEnabled  = false;
 }
 private void GetTime_Click(object sender, RoutedEventArgs e)
 {
     dataSendingState = DataSendingState.GetTime;
     timer.IsEnabled  = true;
 }