public RefactorExtractMethodForm(ITextEditor editor, IProjectService projectService)
        {
            _projectService = projectService;
            InitializeComponent();

            _extractedMethod = editor.GetSelection();
            Text             = string.Format("Extract Method '{0}'", _extractedMethod);
            nameBox.Text     = _methodName;
            _references      = _projectService.FindAllReferences(_extractedMethod).ToList();
            SetupPreview();
            UpdateEditorReferences();
        }