vue2 el-tree树形下拉框

由于element-vue2 中没有el-tree-select组件，所以树形下拉需要结合el-selet完成

<el-form-item label="上级部门：" prop="pidName">

<el-select

ref="select"

v-model="dialogForm.pidName"

placeholder="请选择上级部门"

clearable

>

<el-option style="height: auto;" :value="dialogForm.pidName">

<el-tree

:data="treeData"

:props="defaultProps"

:default-expand-all="true"

@node-click="handleNodeClick"

>

</el-tree>

</el-option>

</el-select>

</el-form-item>

treeData: [],

defaultProps: {

children: "children",

label: "name",

},

handleNodeClick(data) {

this.dialogForm.pidName = data.name; //点击渲染到选框里

this.departMentPid = data.id;

this.$refs.select.blur();

},