javascript - iView中 tree 樹(shù)控件 的方法調(diào)用有錯(cuò)
問(wèn)題描述
官網(wǎng)的說(shuō)明Tree methods
方法名說(shuō)明參數(shù)getCheckedNodes獲取被勾選的節(jié)點(diǎn)無(wú)getSelectedNodes獲取被選中的節(jié)點(diǎn)無(wú)自己擼的代碼----------------------------------
<button @click=’getCheckedNodes’>獲取被選中的節(jié)點(diǎn)</button><button @click='getSelectedNodes'>獲取被勾選的節(jié)點(diǎn)</button>
自己擼的代碼---------------------------
getCheckedNodes(){ console.log(this.$refs.Tree.getCheckedNodes());},getSelectedNodes(){ console.log(this.$refs.tree.getSelectedNodes);}
報(bào)錯(cuò)
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(wèn)題解答
回答1：Tree組件調(diào)用上面要寫(xiě)上ref
<Tree :data='baseData' show-checkbox ref='tree'></Tree>
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