React.js：加载材料表时如何使所有行复选框都为true？

Question

我在我的项目中使用反应物料表，并且我想默认选中选择。如何实现？

function BasicSelection() {
  return (
    <MaterialTable
      title="Basic Selection Preview"
      columns={[
        { title: 'Name', field: 'name' },
        { title: 'Surname', field: 'surname' },
        { title: 'Birth Year', field: 'birthYear', type: 'numeric' },
        {
          title: 'Birth Place',
          field: 'birthCity',
          lookup: { 34: 'İstanbul', 63: 'Şanlıurfa' },
        },
      ]}
      data={[
        { name: 'a', surname: 'b', birthYear: c, birthCity: d },
        { name: 'e', surname: 'f', birthYear: g, birthCity: h },
      ]}        
      options={{
        selection: true
      }}
    />
  )
}

Answer 1

您可以在选择道具中指定选中状态。

class _HomeScreenState extends State<HomeScreen> {
 ScrollController scrollController;
 
  @override
void initState() {
super.initState();
scrollController = new ScrollController();
}
 @override
Widget build(BuildContext context) {
return CustomScrollView(
 controller = scrollController,
  slivers: <Widget>[
  .... your wiidgets...
 ],
);
/* this method should be called on search bar textField tapped or when on whatever 
 event 
*/
void toTop(){
 scrollController.animateTo(0,
      duration: Duration(milliseconds: 500), curve: Curves.easeInOut);
}

此处使所有时间都保持选中状态。您可以根据选择更改事件将功能更新为具有条件。