<template>
<div class="app-container">
<div class="custom-tree-container">
<div class="block">
<p>使用 scoped slot</p>
<el-tree
:data="data"
ref="rootTree"
show-checkbox
node-key="id"
default-expand-all
:expand-on-click-node="false"
>
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button type="text" size="mini" @click="() => append(data)">Append</el-button>
<el-button type="text" size="mini" @click="() => remove(node, data)">Delete</el-button>
</span>
</span>
</el-tree>
</div>
</div>
<div>
<el-button type="text" @click="getCheckedKeys()">获取选中</el-button>
</div>
</div>
</template>
<script>
let id = 1000;
import { treeDataGetnode } from "@/api/tree";
export default {
data() {
const data = [
{
id: 1,
label: "一级 1",
children: [
{
id: 4,
label: "二级 1-1",
children: [
{
id: 9,
label: "三级 1-1-1",
},
{
id: 10,
label: "三级 1-1-2",
},
],
},
],
},
{
id: 2,
label: "一级 2",
children: [
{
id: 5,
label: "二级 2-1",
},
{
id: 6,
label: "二级 2-2",
},
],
},
{
id: 3,
label: "一级 3",
children: [
{
id: 7,
label: "二级 3-1",
},
{
id: 8,
label: "二级 3-2",
},
],
},
];
return {
data: JSON.parse(JSON.stringify(data)),
};
},
methods: {
append(data) {
const newChild = { id: id++, label: "testtest", children: [] };
if (!data.children) {
this.$set(data, "children", []);
}
data.children.push(newChild);
},
remove(node, data) {
const parent = node.parent;
const children = parent.data.children || parent.data;
const index = children.findIndex((d) => d.id === data.id);
children.splice(index, 1);
},
getCheckedKeys() {
var check_array = this.$refs.rootTree.getCheckedKeys(false);
},
},
};
</script>
<style>
.custom-tree-node {
flex: 1;
display: flex;
align-items: center;
justify-content: space-between;
font-size: 14px;
padding-right: 8px;
}
</style>
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