Как создать список для контроллера редактирования текста

    // Your controller Identity Name
    enum YourSpecialControllerKeysNameForClass {
      _Length,
      _Width,
      _LengthInch,
      _WidthInch,
      _LengthFt,
      _WidthFt,
      doorLength,
      doorWidth,
      doorLengthFt,
      doorWidthFt,
      doorLengthInch,
      doorWidthInch,
      tileLength,
      tileWidth,
      tileLengthInch,
      tileWidthInch,
    }
    
    
    
      // Create each for controller names
  Map<YourSpecialControllerKeysNameForClass, TextEditingController> createTextControllers() {
    Map<YourSpecialControllerKeysNameForClass, TextEditingController> createdList = {};

    createdList.addEntries(YourSpecialControllerKeysNameForClass.values.map((e) => MapEntry<YourSpecialControllerKeysNameForClass, TextEditingController>(e, TextEditingController())).toList());

    return createdList;
  }
    
      // Get Controllers By Name
      TextEditingController getTextController(YourSpecialControllerKeysNameForClass key) {
        return controllerList.entries.toList().firstWhere((element) => element.key == key).value;
      }
    
      // And Define this any Widget  
      Map<YourSpecialControllerKeysNameForClass, TextEditingController> controllerList = {};
    
    
      // Initialize youR contollers in initState
      initState() {
    
        // Create Contoller
        controllerList = createTextControllers();
      }
    
    
    
    
      // Usage
      getTextController(YourSpecialControllerKeysNameForClass._Length);




///
///// If you send data to the list then only what you send is disposed.
////  If you don't, they are all disposed.
///
void disposeAllController({List<YourSpecialControllerKeysNameForClass>? onlyList}) {
  if (onlyList != null) {
    controllerList.entries.where((element) => onlyList.contains(element.key)).toList().map((e) => e.value.dispose());
  } else {
    controllerList.values.map((e) => e.dispose());
  }
}