我使用 reactstrap 制作了一个带有令牌的可折叠按钮,并且对于按钮点击折叠一切正常。
我想要这个场景,但另一方面,我如何修改它以使所有可折叠按钮在页面初始呈现时打开。
在访问页面时,所有令牌都需要可见,这意味着所有可折叠项目都需要打开。
如果我们给予,
this.state = {
open: [0 , 1, 2]
};
然后它将被打开,但对于这篇文章,它将起作用,而在实际应用中,我不知道确切的索引是什么,因此像这样的硬编码将不起作用。
请帮我打开所有n
要在初始状态下打开的可折叠数据的数量,点击按钮后,它应该像现在(打开/关闭)令牌一样。
const data = [{"orderId":1,"orderNo":"123", "orderParts":[{"orderPartsId":1,"orderPrtNo":"OP-1", "regTokens":["Token1", "Token2","Token3"]}] },
{"orderId":2,"orderNo":"456", "orderParts":[{"orderPartsId":1,"orderPrtNo":"OP-1", "regTokens":["Token1","Token3"]}] },
{"orderId":3,"orderNo":"789", "orderParts":[{"orderPartsId":1,"orderPrtNo":"OP-1", "regTokens":["Token1", "Token2","Token3", "Token4"]}] }
]
const {Component, Fragment} = React;
const {Button, Collapse} = Reactstrap;
class Menu extends Component {
constructor(props) {
super(props);
this.state = {
open: []
};
}
toggle = idx => () => {
this.setState(prevState => ({open: this.state.open.includes(idx) ? prevState.open.filter(x => x !== idx) : [...prevState.open, idx]})
)}
render() {
const { open } = this.state;
return <div>
{
data.map((levelOneItem, i) => {
return(
<div>
<div> Order Id: {levelOneItem.orderId} </div>
{
levelOneItem.orderParts.map((levelTwoItem, j) => {
return(
<div>
<div> Order Part Id: {levelTwoItem.orderPartsId} </div>
<Button onClick={this.toggle(i)}>Display Token</Button>
<Collapse isOpen={open.includes(i)}>
{
<div>
{levelTwoItem.regTokens.map((levelThreeItem, k) => {
return(<span> {levelThreeItem} </span>)
})
}
</div>
}
</Collapse>
</div>
)
})
}
</div>
)
})
}
</div>;
}
}
ReactDOM.render(<Menu />, document.getElementById("root"));
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.4.1/css/bootstrap.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/reactstrap/8.4.1/reactstrap.min.js"></script>
<div id="root"></div>