問題描述

官網的說明Tree methods

自己擼的代碼----------------------------------

<button @click=’getCheckedNodes’>獲取被選中的節(jié)點</button><button @click='getSelectedNodes'>獲取被勾選的節(jié)點</button>

自己擼的代碼---------------------------

getCheckedNodes(){ console.log(this.$refs.Tree.getCheckedNodes());},getSelectedNodes(){ console.log(this.$refs.tree.getSelectedNodes);}

報錯

App.vue?2573:105 Uncaught TypeError: Cannot read property ’getCheckedNodes’ of undefinedat 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)

問題解答

Tree組件調用上面要寫上ref

<Tree :data='baseData' show-checkbox ref='tree'></Tree>