ant-design/components/tabs/demo/add.md

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# 添加
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- order: 4
- hidden: true
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演示添加删除功能。
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---
````jsx
var Tabs = antd.Tabs;
var TabPane = Tabs.TabPane;
var Button = antd.Button;
var Icon = antd.Icon;
var index = 0;
var closeStyle = {
position: 'absolute',
top: 0,
right: -10,
};
var addStyle = {
pointerEvents: 'auto',
color: 'black',
};
var extraStyle = {
float: 'right'
};
var Test = React.createClass({
getInitialState() {
return {
tabs: [{
title: 'title ' + index,
content: 'content ' + index,
}],
activeKey: 'title ' + index
};
},
remove(title, e) {
e.stopPropagation();
if(this.state.tabs.length === 1) {
antd.message.error('仅剩一个,不能删除');
return;
}
var foundIndex = 0;
var tabs = this.state.tabs.filter(function (t, index) {
if (t.title !== title) {
return true;
} else {
foundIndex = index;
return false;
}
});
var activeKey = this.state.activeKey;
if (activeKey === title) {
if (foundIndex) {
foundIndex--;
}
activeKey = tabs[foundIndex].title;
}
this.setState({tabs, activeKey})
},
add() {
index++;
this.setState({
tabs: this.state.tabs.concat({
title: 'title '+index,
content: 'content '+index,
})
});
},
onChange(activeKey) {
this.setState({activeKey});
},
render() {
return <Tabs
onChange={this.onChange}
activeKey={this.state.activeKey}
tabBarExtraContent={<div style={extraStyle}><Button type="primary">其它操作</Button></div>}>
{
this.state.tabs.map((t)=>{
return <TabPane key={t.title} tab={<div>{t.title} <Icon type="cross" style={closeStyle} onClick={this.remove.bind(this,t.title)}></Icon></div>}>
{t.content}
</TabPane>;
}).concat(<TabPane key="__add" disabled tab={<Icon style={addStyle} type="plus-circle" onClick={this.add}></Icon>} />)
}
</Tabs>
}
})
ReactDOM.render(<Test />, document.getElementById('components-tabs-demo-add'));
````