/// <summary>
        ///		Obtiene la biblioteca seleccionada (si está seleccionado un libro, se recoge la biblioteca padre)
        /// </summary>
        private LibraryModel GetSelectedLibrarySearch()
        {
            LibraryModel library = TreeBooks.GetSelectedLibrary();

            // Si está en un libro, se selecciona la biblioteca padre
            if (library == null)
            {
                library = TreeBooks.GetSelectedLibraryParent();
            }
            // Devuelve la biblioteca
            return(library);
        }
        /// <summary>
        ///		Comprueba si se puede ejecutar una acción
        /// </summary>
        protected override void ExecuteAction(string action, object parameter)
        {
            switch (action)
            {
            case nameof(PropertiesCommand):
                if (!TreeBooks.IsSelectedBook)
                {
                    OpenFormUpdateLibrary(TreeBooks.GetSelectedLibrary(), TreeBooks.GetSelectedLibraryParent());
                }
                break;

            case nameof(NewBookCommand):
                OpenFormUpdateBook(TreeBooks.GetSelectedBook(), TreeBooks.GetSelectedLibraryParent());
                break;

            case nameof(OpenBookCommand):
                OpenBook(TreeBooks.GetSelectedBook());
                break;

            case nameof(DeleteCommand):
                if (TreeBooks.SelectedNode != null)
                {
                    if (TreeBooks.IsSelectedLibrary)
                    {
                        DeleteLibrary(TreeBooks.GetSelectedLibrary());
                    }
                    else if (TreeBooks.IsSelectedBook)
                    {
                        DeleteBook(TreeBooks.GetSelectedBook());
                    }
                }
                break;

            case nameof(CompileCommand):
                OpenFormCompileBook(TreeBooks.GetSelectedBook());
                break;

            case nameof(RefreshCommand):
                Refresh();
                break;
            }
        }