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# 和外部组件通信
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- order: 2
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联动 checkbox。
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---
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````jsx
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import { Checkbox, Button } from 'antd';
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const container = document.getElementById('components-checkbox-demo-controller');
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const App = React.createClass({
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getInitialState() {
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return {
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checked: true,
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disabled: false
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};
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},
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render() {
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var label = (this.state.checked ? '选中' : '取消') + '-' +
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(this.state.disabled ? '不可用' : '可用');
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return <div>
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<p style={{marginBottom: '20px'}}>
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<label>
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<Checkbox checked={this.state.checked}
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disabled={this.state.disabled}
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onChange={this.onChange} />
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{label}
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</label>
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</p>
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<p>
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<Button type="primary" size="small"
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onClick={this.toggleChecked}>
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{!this.state.checked ? "选中":"取消"}
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</Button>
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<Button style={{'marginLeft': '10px'}}
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type="primary" size="small"
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onClick={this.toggleDisable}>
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{!this.state.disabled ? "不可用":"可用"}
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</Button>
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</p>
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</div>;
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},
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toggleChecked(e) {
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this.setState({checked: !this.state.checked});
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},
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toggleDisable(e) {
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this.setState({disabled: !this.state.disabled});
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},
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onChange(e) {
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console.log('checked = ', e.target.checked);
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this.setState({
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checked: e.target.checked
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});
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}
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});
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ReactDOM.render(<App />, container);
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````
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