html 树形展示数据,element-ui 表格树形数据 的展示和收起

//row-key 和ref 要必须写

v-loading="load"

element-loading-text="加载数据中"

ref="theTable"

:data="tableList"

style="width: 100%"

:row-key="add"

:tree-props="{ children: ‘children‘, hasChildren: ‘hasChildren‘ }"

:header-cell-style="{ background: ‘#eef1f6‘, color: ‘#606266‘ }"

>

......

method:{

//筛选

screenclick() {

//点击筛选的时候 让筛选出来的数据展开

this.forArr(this.tableList, false);

this.getList();

},

// 重置

Resetdata() {

this.textval = "";

//重置的时候 让数据全部收起

this.forArr(this.tableList, false);

this.getList();

},

//列表展开和收起

forArr(arr, isExpand) {

arr.forEach(i => {

this.$refs.theTable.toggleRowExpansion(i, isExpand);

if (i.children) {

this.forArr(i.children, isExpand);

}

});

},

}

原文：https://www.cnblogs.com/itcjh/p/12936358.html