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| <template>
| <div class="tree-container">
| <el-card shadow="hover" header="element plus Tree 树形控件改成表格">
| <div v-loading="treeLoading">
| <div class="tree-head">
| <div class="tree-head-check"><el-checkbox v-model="treeCheckAll" @change="onCheckAllChange"></el-checkbox></div>
| <div class="tree-head-one">商品 ID</div>
| <div style="flex: 1; display: flex">
| <div class="tree-head-two">商品名称</div>
| <div class="tree-head-three">描述</div>
| </div>
| </div>
| <el-tree :data="treeTableData" show-checkbox node-key="id" ref="treeTable" :props="treeDefaultProps" @check="onCheckTree">
| <template #default="{ node, data }">
| <span class="tree-custom-node">
| <span style="flex: 1">{{ node.label }}</span>
| <span v-if="data.isShow" style="flex: 1; display: flex">
| <span type="text" size="default" style="flex: 1">{{ data.label1 }}</span>
| <span type="text" size="default" style="flex: 1">{{ data.label2 }}</span>
| </span>
| </span>
| </template>
| </el-tree>
| </div>
| <el-button @click="onSelect" class="mt15" size="default" type="primary">
| <SvgIcon name="iconfont icon-shuxingtu" />
| 选择元素
| </el-button>
| </el-card>
| </div>
| </template>
|
| <script lang="ts">
| import { toRefs, reactive, onBeforeMount, getCurrentInstance, defineComponent } from 'vue';
| import { ElMessage } from 'element-plus';
|
| // 定义接口来定义对象的类型
| interface TreeDataState {
| id: number;
| label: string;
| label1: string;
| label2: string;
| isShow: boolean;
| children?: TreeDataState[];
| }
| interface TreeSate {
| treeCheckAll: boolean;
| treeLoading: boolean;
| treeTableData: TreeDataState[];
| treeDefaultProps: {
| children: string;
| label: string;
| };
| treeSelArr: TreeDataState[];
| treeLength: number;
| }
|
| export default defineComponent({
| name: 'pagesTree',
| setup() {
| const { proxy } = <any>getCurrentInstance();
| const state = reactive<TreeSate>({
| treeCheckAll: false,
| treeLoading: false,
| treeTableData: [],
| treeDefaultProps: {
| children: 'children',
| label: 'label',
| },
| treeSelArr: [],
| treeLength: 0,
| });
| // 初始化树的长度
| const initTreeLengh = (arr: TreeDataState[]) => {
| let count = 0;
| arr.map((item) => {
| if (item.children) {
| count += item.children.length;
| }
| });
| state.treeLength = count + arr.length;
| };
| // 全选改变时
| const onCheckAllChange = () => {
| if (state.treeCheckAll) {
| proxy.$refs.treeTable.setCheckedNodes(state.treeTableData);
| } else {
| proxy.$refs.treeTable.setCheckedKeys([]);
| }
| };
| // 节点选中状态发生变化时的回调
| const onCheckTree = () => {
| state.treeSelArr = [];
| state.treeSelArr = proxy.$refs.treeTable.getCheckedNodes();
| state.treeSelArr.length == state.treeLength ? (state.treeCheckAll = true) : (state.treeCheckAll = false);
| };
| // 选择元素按钮
| const onSelect = () => {
| let treeArr = proxy.$refs.treeTable.getCheckedNodes();
| if (treeArr.length <= 0) {
| ElMessage.warning('请选择元素');
| return;
| } else {
| // console.log(proxy.$refs.treeTable.getCheckedNodes());
| }
| };
| // 初始化树模拟数据
| const getTreeData = () => {
| state.treeTableData = [
| {
| id: 1,
| label: '12987121',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: true,
| children: [
| {
| id: 11,
| label: '一级 1-1',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| {
| id: 12,
| label: '一级 1-2',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| ],
| },
| {
| id: 2,
| label: '12987122',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: true,
| children: [
| {
| id: 21,
| label: '二级 2-1',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| {
| id: 22,
| label: '二级 2-2',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| ],
| },
| {
| id: 3,
| label: '12987123',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: true,
| children: [
| {
| id: 31,
| label: '二级 3-1',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| {
| id: 32,
| label: '二级 3-2',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| {
| id: 33,
| label: '二级 3-3',
| label1: '好滋好味鸡蛋仔',
| label2: '荷兰优质淡奶，奶香浓而不腻',
| isShow: false,
| },
| ],
| },
| ];
| initTreeLengh(state.treeTableData);
| };
| // 页面加载前
| onBeforeMount(() => {
| getTreeData();
| });
| return {
| getTreeData,
| onCheckAllChange,
| onCheckTree,
| onSelect,
| ...toRefs(state),
| };
| },
| });
| </script>
|
| <style scoped lang="scss">
| .tree-container {
| .tree-head {
| height: 48px;
| line-height: 48px;
| border: 1px solid var(--next-border-color-light);
| border-bottom: none;
| display: flex;
| padding-right: 8px;
| font-weight: bold;
| color: #909399;
| .tree-head-check {
| width: 38px;
| text-align: right;
| }
| .tree-head-one,
| .tree-head-two,
| .tree-head-three {
| flex: 1;
| }
| .tree-head-one {
| padding-left: 8px;
| }
| }
| .el-tree {
| overflow: hidden;
| border-bottom: 1px solid var(--next-border-color-light);
| .tree-custom-node {
| flex: 1;
| display: flex;
| align-items: center;
| justify-content: space-between;
| padding-right: 8px;
| width: 100%;
| }
| &::v-deep(.el-tree-node) {
| border: 1px solid var(--next-border-color-light);
| border-bottom: none;
| color: #606266;
| .el-tree-node__content {
| line-height: 57px !important;
| height: 57px !important;
| }
| .el-tree-node__children {
| .el-tree-node {
| border: none;
| }
| .el-tree-node__content {
| border-top: 1px solid var(--next-border-color-light);
| }
| }
| }
| }
| }
| </style>
|
|
