我想創建兩個表,我可以將數據拉入父組件,將數據傳遞到一個表中,並允許將數據從一個表移動到另一個表。所以我需要能夠爲所有AJAX數據創建一個表格,然後爲所選數據創建一個表格。我無法通過道具傳遞數據,因爲一旦AJAX請求完成,孩子不會更新。 (基本上父組件觀察和兩個孩子之間共享數據。)如何通過道具傳遞AJAX數據給孩子
我已經嘗試了「WillReceive」和「WillUpdate」風格的文檔的方法,但他們從來不叫,我嘗試更新狀態
這裏是(我假裝對於現在的數據)
getInvoiceData(){
return new Promise(function(resolve, reject) {
console.log("hi");
resolve([{number: "1"},{number: "2"},{number: "3"}]);
})
}
繼承人,我用REQ請求
componentDidMount() {
const self = this;
self.getInvoiceData()
.then((response) => {
self.state.invoices = response;
console.log(self.state);
})
.catch((err) => {
console.error(err);
})
}
我的繼承人渲染
render() {
return (
<div>
<p>Selected:
{
function() {return JSON.parse(this.selected)}
}
</p>
<InvoicePickTable invoices = {this.state.invoices} selected = {this.selected} />
<button>Move</button>
<InvoiceSelectedTable selectedInvoices = {this.state.selectedInvoices} />
</div>
);
}
繼承人我的孩子
import React from 'react';
class InvoicePickTable extends React.Component {
constructor(props) {
console.log("constructor called");
super(props);
this.state = {invoices: []};
}
selectInvoice(invoice) {
this.props.selected = invoice;
}
//never gets called
componentWillUpdate(nextProps, nextState) {
console.log(nextProps);
console.log(nextState)
console.log("eyy lmao");
this.state.invoices = nextProps.invoices;
this.state.hasDate = true;
}
//never gets called
componentWillReceiveProps(nextProps) {
console.log(nextProps);
console.log("eyy lrofl");
this.state.invoices = nextProps.invoices;
}
render() {
return (
<table>
<thead>
<tr>
<th>Invoice #</th>
<th>Task Price</th>
<th>Balance</th>
<th>Task Name</th>
<th><button onClick={()=>{console.log(this.props);console.log(this.state)}}>props</button></th>
</tr>
</thead>
<tbody>
{
this.props.invoices.map(function (invoice) {
console.log("in");
console.log(invoice);
return (
<tr key = {invoice.number} onClick={this.selectInvoice(invoice)}>
<td>{invoice.number}</td>
</tr>
);
})
}
</tbody>
</table>
);
}
}
export default InvoicePickTable;