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iView中 tree 树控件 的方法调用有错

官网的说明
Tree methods

方法名说明参数
getCheckedNodes获取被勾选的节点
getSelectedNodes获取被选中的节点

自己撸的代码----------------------------------

<button @click='getCheckedNodes'>获取被选中的节点</button>

<button @click="getSelectedNodes">获取被勾选的节点</button>

自己撸的代码---------------------------

getCheckedNodes(){

    console.log(this.$refs.Tree.getCheckedNodes());

},

getSelectedNodes(){

    console.log(this.$refs.tree.getSelectedNodes);

}

报错

App.vue?2573:105 Uncaught TypeError: Cannot read property 'getCheckedNodes' of undefined


at VueComponent.getCheckedNodes (eval at <anonymous> (app.js:967), <anonymous>:92:40)

at boundFn (eval at <anonymous> (app.js:723), <anonymous>:125:14)

at HTMLButtonElement.invoker (eval at <anonymous> (app.js:723), <anonymous>:1659:18)


潇湘沐
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1回答

明月笑刀无情

Tree组件调用上面要写上ref<Tree :data="baseData" show-checkbox ref="tree"></Tree>
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JavaScript
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