private bool PreviousChangeCanExecute(DiffViewModel currentEditorDiffViewModel)
 {
     return(DiffViewModels.IndexOf(currentEditorDiffViewModel) > 0);
 }
 private bool NextChangeCanExecute(DiffViewModel currentEditorDiffViewModel)
 {
     return(DiffViewModels.IndexOf(currentEditorDiffViewModel) < (DiffViewModels.Count - 1));
 }