本文實(shí)例為大家分享了react實(shí)現(xiàn)復(fù)選框全選和反選組件的具體代碼，供大家參考，具體內(nèi)容如下
運(yùn)行效果圖如下：
代碼：
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import React, { Component } from 'react';import { withRouter } from 'react-router-dom';// import Menu from '../menu/Menu.jsx';class List extends Component { constructor () { super(); this.state = { title: '我是List的標(biāo)題', content: '我是內(nèi)容部分部分', chooseAll: false, // 全選標(biāo)志 inters: ['bsball', 'ymball', 'fbball'], // 頁面加載默認(rèn)選中項(xiàng) intersAll: ['bsball', 'ymball', 'ppball', 'fbball'], fchoose: false // 正反選標(biāo)志 }; } // 全選 chooseAll (event) { let {checked, value} = event.target; let chooseAll = this.state.inters.length === 4 ? true : false; let inters = ['bsball', 'ymball', 'ppball', 'fbball']; checked ? ( this.setState({ inters, chooseAll: checked }) ) : ( this.setState({ inters: [], chooseAll: checked }) ); } // 點(diǎn)擊復(fù)選框 chooseInter (event) { let val = event.target.value; let checked = event.target.checked; let {inters} = this.state; // event.stopPropagation(); // 選中復(fù)選框并且值不在數(shù)組里面 if (checked && !this.state.inters.includes(val)) { inters.push(val); } else { // 取消選中的選項(xiàng) inters = inters.filter(v => val !== v); } let chooseAll = inters.length === 4 ? true : false; console.log(inters); this.setState({ inters, chooseAll }); } // 反選處理 fchooseHandle (event) { let {checked, value} = event.target; let {inters, intersAll} = this.state; let chooseAll = this.state.inters.length === 4 ? true : false; let arr = []; // 反選結(jié)果 this.setState({ fchoose: checked, chooseAll }); intersAll.forEach(item => { if (!inters.includes(item)) { arr.push(item); } }); this.setState({ inters: arr }); } componentWillMount () { let chooseAll = this.state.inters.length === 4 ? true : false; this.setState({ chooseAll }); } render () { return ( <div className="list"> {/* <Menu /> */} <h1>{this.state.title}</h1> <p>{this.state.content}</p> <p> <label> <input type="checkbox" value="bsball" checked={this.state.fchoose} onClick={this.fchooseHandle.bind(this)}/>{this.state.fchoose ? '取消反選' : '反選'} </label> <label> <input type="checkbox" value="bsball" checked={this.state.chooseAll} onClick={this.chooseAll.bind(this)}/>{this.state.chooseAll ? '取消全選' : '全選'} </label> </p> <p> <label> <input type="checkbox" value="bsball" checked={this.state.inters.includes('bsball')} onClick={this.chooseInter.bind(this)}/>籃球 </label> <label> <input type="checkbox" value="ymball" checked={this.state.inters.includes('ymball')} onClick={this.chooseInter.bind(this)}/>羽毛球 </label> <label> <input type="checkbox" value="ppball" checked={this.state.inters.includes('ppball')} onClick={this.chooseInter.bind(this)}/>兵乓球 </label> <label> <input type="checkbox" value="fbball" checked={this.state.inters.includes('fbball')} onClick={this.chooseInter.bind(this)}/>足球 </label> </p> </div> ); }}export default withRouter(List); |
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：https://blog.csdn.net/CodingNoob/article/details/88106500
