我有一个主要组件和一个子组件,在这里我使用antd表。 该代码不会引发任何异常,并且所选的id可以正确地流到主要组件。
但是,单击复选框后它们会被清除,所以我不确定这里缺少什么
主要组成部分
import React, { Component } from 'react';
import { Input} from 'antd';
import Form from '../../components/uielements/form';
import Button from '../../components/uielements/button';
import Notification from '../../components/notification';
import { adalApiFetch } from '../../adalConfig';
import ListPageTemplatesWithSelection from './ListPageTemplatesWithSelection';
const FormItem = Form.Item;
class CreateModernSiteCollectionForm extends Component {
constructor(props) {
super(props);
this.state = {Alias:'',DisplayName:'', Description:'', PageTemplateIds : []};
this.handleChangeAlias = this.handleChangeAlias.bind(this);
this.handleChangeDisplayName = this.handleChangeDisplayName.bind(this);
this.handleChangeDescription = this.handleChangeDescription.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
this.handleRowSelect = this.handleRowSelect.bind(this);
}
handleRowSelect(ids) {
this.setState({ PageTemplateIds: ids });
}
handleChangeAlias(event){
this.setState({Alias: event.target.value});
}
handleChangeDisplayName(event){
this.setState({DisplayName: event.target.value});
}
handleChangeDescription(event){
this.setState({Description: event.target.value});
}
handleSubmit(e){
e.preventDefault();
this.props.form.validateFieldsAndScroll((err, values) => {
if (!err) {
let data = new FormData();
//Append files to form data
//data.append(
const options = {
method: 'post',
body: JSON.stringify(
{
"Alias": this.state.Alias,
"DisplayName": this.state.DisplayName,
"Description": this.state.Description
}),
headers: {
'Content-Type': 'application/json; charset=utf-8'
}
};
adalApiFetch(fetch, "/SiteCollections", options)
.then(response =>{
if(response.status === 201){
Notification(
'success',
'Site collection created',
''
);
}else{
throw "error";
}
})
.catch(error => {
Notification(
'error',
'Site collection not created',
error
);
console.error(error);
});
}
});
}
render() {
// rowSelection object indicates the need for row selection
const handleRowSelect = {
onChange: (selectedRowKeys, selectedRows) => {
console.log(selectedRowKeys);
}
};
const { getFieldDecorator } = this.props.form;
const formItemLayout = {
labelCol: {
xs: { span: 24 },
sm: { span: 6 },
},
wrapperCol: {
xs: { span: 24 },
sm: { span: 14 },
},
};
const tailFormItemLayout = {
wrapperCol: {
xs: {
span: 24,
offset: 0,
},
sm: {
span: 14,
offset: 6,
},
},
};
return (
<Form onSubmit={this.handleSubmit}>
<FormItem {...formItemLayout} label="Alias" hasFeedback>
{getFieldDecorator('Alias', {
rules: [
{
required: true,
message: 'Please input your alias',
}
]
})(<Input name="alias" id="alias" onChange={this.handleChangeAlias} />)}
</FormItem>
<FormItem {...formItemLayout} label="Display Name" hasFeedback>
{getFieldDecorator('displayname', {
rules: [
{
required: true,
message: 'Please input your display name',
}
]
})(<Input name="displayname" id="displayname" onChange={this.handleChangeDisplayName} />)}
</FormItem>
<FormItem {...formItemLayout} label="Description" hasFeedback>
{getFieldDecorator('description', {
rules: [
{
required: true,
message: 'Please input your description',
}
],
})(<Input name="description" id="description" onChange={this.handleChangeDescription} />)}
</FormItem>
<ListPageTemplatesWithSelection onRowSelect={this.handleRowSelect} />
<FormItem {...tailFormItemLayout}>
<Button type="primary" htmlType="submit">
Create modern site
</Button>
</FormItem>
</Form>
);
}
}
const WrappedCreateModernSiteCollectionForm = Form.create()(CreateModernSiteCollectionForm);
export default WrappedCreateModernSiteCollectionForm;
子组件
import React, { Component } from 'react';
import { Table, Radio} from 'antd';
import { adalApiFetch } from '../../adalConfig';
import Notification from '../../components/notification';
class ListPageTemplatesWithSelection extends Component {
constructor(props) {
super(props);
this.state = {
data: []
};
}
fetchData = () => {
adalApiFetch(fetch, "/PageTemplates", {})
.then(response => response.json())
.then(responseJson => {
if (!this.isCancelled) {
const results= responseJson.map(row => ({
key: row.Id,
Name: row.Name
}))
this.setState({ data: results });
}
})
.catch(error => {
console.error(error);
});
};
componentDidMount(){
this.fetchData();
}
render(){
const columns = [
{
title: 'Id',
dataIndex: 'key',
key: 'key',
},
{
title: 'Name',
dataIndex: 'Name',
key: 'Name',
}
];
const rowSelection = {
selectedRowKeys: this.props.selectedRows,
onChange: (selectedRowKeys) => {
this.props.onRowSelect(selectedRowKeys);
}
};
return (
<Table rowSelection={rowSelection} columns={columns} dataSource={this.state.data} />
);
}
}
export default ListPageTemplatesWithSelection;
答案 0 :(得分:1)
之所以发生这种情况,是因为子组件期望使用selectedRows
道具,但主要组件没有将其传递给它。
const rowSelection = {
selectedRowKeys: this.props.selectedRows,
//-----------------------------^^--------
onChange: (selectedRowKeys) => {
this.props.onRowSelect(selectedRowKeys);
}
};
因此,当您选择某项内容时,父项会通过onRowSelect
属性更新其状态。但是它忘记通过selectedRows
道具将更新后的状态发送回孩子。因此,孩子不知道已选择了哪一行,并且不知道默认未检查行为的后备。
要解决此问题,只需在主要组件中将PageTemplateIds
状态作为selectedRows
属性传递即可。
<ListPageTemplatesWithSelection
onRowSelect={this.handleRowSelect}
selectedRows={this.state.PageTemplateIds}
/>