在项目中用到菜单项编辑删除,在 element-ui自定义节点内容时,
有说明:使用render-content
指定渲染函数,
得环境支持 JSX 语法,只要正确地配置了相关依赖,就可以正常运行。
一,下面安装依赖:
cnpm install babel-plugin-transform-vue-jsx -S
cnpm install babel-helper-vue-jsx-merge-props -S
cnpm install babel-plugin-syntax-jsx -S
二,然后在.babelrc文件中配置插件即可
如环境不支持 JSX 语法,下面代码全报错
<el-tree
:data="data2"
:props="defaultProps"
show-checkbox
node-key="id"
default-expand-all
:expand-on-click-node="false"
:render-content="renderContent">
</el-tree> <script>
let id = ; export default {
data() {
return {
data2: [{
id: ,
label: '一级 1',
children: [{
id: ,
label: '二级 1-1',
children: [{
id: ,
label: '三级 1-1-1'
}, {
id: ,
label: '三级 1-1-2'
}]
}]
}, {
id: ,
label: '一级 2',
children: [{
id: ,
label: '二级 2-1'
}, {
id: ,
label: '二级 2-2'
}]
}, {
id: ,
label: '一级 3',
children: [{
id: ,
label: '二级 3-1'
}, {
id: ,
label: '二级 3-2'
}]
}],
defaultProps: {
children: 'children',
label: 'label'
}
}
}, methods: {
append(store, data) {
store.append({ id: id++, label: 'testtest', children: [] }, data);
}, remove(store, data) {
store.remove(data);
}, renderContent(h, { node, data, store }) {
return (
<span>
<span>
<span>{node.label}</span>
</span>
<span style="float: right; margin-right: 20px">
<el-button size="mini" on-click={ () => this.append(store, data) }>Append</el-button>
<el-button size="mini" on-click={ () => this.remove(store, data) }>Delete</el-button>
</span>
</span>);
}
}
};
</script>