private void OnSync(object param) { this.BusyMessage = "Synchronizing"; this.IsBusy = true; Mobeelizer.Sync((error) => { this.IsBusy = false; if (error == null) { Deployment.Current.Dispatcher.BeginInvoke(new Action(() => { this.RefreshEntitiesList(); })); } else { navigationService.ShowMessage(Resources.Errors.e_title, Resources.Errors.e_syncFailed); } }); }