我创建了一个带有行和子行的表格。当我删除一个子行时,需要重新渲染整个组件。
import React from 'react';
import ReactDOM from 'react-dom';
import auth from './auth'
export class FormList extends React.Component{
constructor(props) {
super(props);
auth.onChange = this.updateAuth.bind(this)
this.state = {results: []};
}
componentWillMount() {
auth.login();
}
// call to get the whole list of forms for react to re-render.
getForms() {
if(this.state.loggedIn) {
$.get(call server url, function(result) {
this.setState({
results: result.data.forms
});
}.bind(this));
}
}
updateAuth(loggedIn) {
this.setState({
loggedIn: loggedIn
});
this.getForms()
}
componentDidMount() {
this.getForms()
}
render() {
return (
<FormTable results={this.state.results} />
)
}
};
class FormTable extends React.Component{
render() {
return (
<table className="forms">
<thead>
<tr>
<th>Form Name</th>
<th></th>
<th style={{width: "40px"}}></th>
</tr>
</thead>
{this.props.results.map(function(result) {
return <FormItem key={result.Id} data={result} />;
})}
</table>
)
}
};
class FormItem extends React.Component{
render() {
return (
<tbody>
<tr className="form_row">
<td>{this.props.data.Name}</td>
<td></td>
</tr>
{this.props.data.map(function(result) {
return <FormTransaction key={result.Id} data={result} />;
})}
</tbody>
)
}
};
class FormTransaction extends React.Component{
render() {
return (
<tr className="subform_row">
<td>{this.props.data.date}</td>
<td></td>
<td data-enhance="false">
<DeleteTransaction data={this.props.data.Id} />
</tr>
)
}
};
class DeleteTransaction extends React.Component {
constructor(props) {
super(props);
this.state = {Id:props.data};
this.handleDelete = this.handleDelete.bind(this);
}
// deletes a sub row and calls get forms to re-render the whole react.
handleDelete(event) {
$.ajax({
url: server url + this.state.Id,
type: 'DELETE',
data: {},
dataType: 'json',
success: function(result, status) {
console.log(this);
// need to call get forms here
},
error: function(jqXHR, status, error) {
console.log(jqXHR);
}
});*/
}
render() {
return(
<i className="danger" onClick = {this.handleDelete}>X</i>
)
}
};
ReactDOM.render(
(<FormList/>),
document.getElementById('react-forms')
);
所以在handledelete方法成功删除后,我需要调用getforms方法。
我对React和使用ES6都不太熟悉。我尝试将deletetransaction扩展到formslist,并调用super.getForms。但那也没用。任何帮助都将不胜感激。