execute method

Implementation

@override
Future<bool?> execute(
    String caller, String propertyOrFunction, List<dynamic> arguments) async {
  /// setter
  if (scope == null) return null;
  var function = propertyOrFunction.toLowerCase().trim();

  switch (function) {
    // export the data
    case "export":
      await export();
      return true;

    // selects the item by index
    case "select":
      int index = toInt(elementAt(arguments, 0)) ?? -1;
      if (index >= 0 && index < items.length) {
        var model = items[index];
        if (model != null && model.selected == false) onTap(model);
      }
      return true;

    // de-selects the item by index
    case "deselect":
      int index = toInt(elementAt(arguments, 0)) ?? -1;
      if (index >= 0 && _dataset != null && index < _dataset!.length) {
        var model = items[index];
        if (model != null && model.selected == true) onTap(model);
      }
      return true;

    // de-selects the item by index
    case "clear":
      onTap(null);
      return true;
  }

  return super.execute(caller, propertyOrFunction, arguments);
}