/***********************************************************/ // "Stop" click /***********************************************************/ private void btnStop_Click(object sender, RoutedEventArgs e) { var dt = DateTime.Now; ObservableCollection <TimeRegistration> list = (ObservableCollection <TimeRegistration>)dgTimeRegistrations.ItemsSource; var tr = list[0]; if (tr.EndTime != "") { MessageBox.Show("You have not started a time registration"); return; } var wsObj = WebserviceCalls.EndTimeRegistration(tr.TimeRegId, dt.ToString("yyyy-MM-dd'T'HH:mm:ss")); if (wsObj.Success) { GetTimeRegistrations(); } }