网站优化工具分析工具网页

• 在线演示
• https://stackblitz.com/edit/stackblitz-starters-xwtwyz?file=src%2FSelfTreeSelect.tsx

需求

• 当我们点击提交,需要返回用户名和选中树的id信息,但是,我不关要返回树的id信息,还需要返回选中树的名称

//默认返回的
{userName:'梦洁',treeInfo:'leaf1-value'
}
//但是需要返回的如下
{userName:'梦洁'treeInfo:{name:'leaf1-name',value:'leaf1-value'}
}

做法

了解下Form.Item怎么获取值的

• 大概就是这样子

实现自定义

• 主组件index.tsx

import {Form,Input,Button} from "antd";
import SelfTreeSelect from "../../component/SelfTreeSelect";const Index = () => {const [form] = Form.useForm();const onFinish = (values: any) => {console.log('Success:', values);};/*初始化值*/const setInitValue = () => {form.setFieldsValue({username:'梦洁',treeInfo:{value:'leaf1-value',//这里传入数组是因为对于树来说,可以多选,所以后端保存的值也可能是数组,list:['leaf1-title']}})}return (<><Formform={form}name="basic"onFinish={onFinish}><Form.Itemlabel="用户名"name="username"rules={[{required: true, message: 'Please input your username!'}]}><Input/></Form.Item>{/*自定义组件*/}<Form.Itemname="treeInfo"label="树的信息"><SelfTreeSelect/></Form.Item><Form.Item ><Button type="primary" htmlType="submit">Submit</Button></Form.Item></Form><Button onClick={setInitValue}>点击我初始化值</Button></>);
};export default Index;

• 自定义组件SelfTreeSelect.tsx

import React, {useEffect, useState} from 'react';
import { TreeSelect } from 'antd';
const treeData = [{value: 'parent 1-value',title: 'parent 1-title',children: [{value: 'parent 1-0-value',title: 'parent 1-0-title',children: [{value: 'leaf1-value',title: 'leaf1-title',},{value: 'leaf2-value',title: 'leaf2-title',},],},],},
];
/* 默认值,初始值?form设置值 */
const SelfTreeSelect = (props:any) => {const { value,onChange } = props;console.log('查看传入的值',props)/*这里简单演示下回填值*/useEffect(() => {setCurrentValue(value?.list[0])}, [props]);/*内部值,这样子就可以设置这个值来实现默认值的操作了*/const [currentValue, setCurrentValue] = useState<string>();const onSelectChange = (newValue: string,selectList:never[]) => {console.log('输出新值第一个为选中的value,第二个为选中的title数组',newValue,selectList)setCurrentValue(newValue);onChange({value:newValue,list:selectList,})};return (<TreeSelectshowSearchstyle={{ width: '100%' }}value={currentValue}dropdownStyle={{ maxHeight: 400, overflow: 'auto' }}placeholder="Please select"allowCleartreeDefaultExpandAllonChange={onSelectChange}treeData={treeData}/>);
};export default SelfTreeSelect;