private void GraphLoaded_Executed(object sender, ExecutedRoutedEventArgs e)
{
gitViewModel.DisableAutoRefresh();
this.loading.Visibility = Visibility.Collapsed;
this.topToolBar.GitViewModel = gitViewModel;
this.Title = gitViewModel.Tracker.HasGitRepository ?
string.Format("{0} ({1})", gitViewModel.Tracker.GitWorkingDirectory, gitViewModel.Tracker.CurrentBranch) :
string.Format("{0} (No Repository)", gitViewModel.WorkingDirectory);
gitViewModel.EnableAutoRefresh();
}