省市区新增删除逻辑

src/views/data/tenant/index.vue

         :datasource="url"
         :columns="columns"
         :where="where"
-        v-model:selection="selection"
         :scroll="{x: 'max-content'}">
         <template #toolbar>
           <a-space>

src/views/data/tenant/tenant-edit.vue

     },
     /* 选择省市区 */
     selectArea(value, type, name){
+      this.getListBycode(value, type, name)
       if (type === 'province') {
         this.cityList = []
         this.districtList = []
         this.form.cityCode = null
+        this.form.cityName = null
         this.form.districtCode = null
+        this.form.districtName = null
       } 
       if (type === 'city') {
         this.districtList = []
         this.form.districtCode = null
+        this.form.districtName = null
       }
-      this.getListBycode(value, type, name)
     },
      /* 根据选择的选中的code返回子项列表 */
     getListBycode(code, name, childrenName) {
-      this[name + 'List'].forEach((item) => {
-        if (item.citycode == code) {
-          this[childrenName + 'List'] = item.itemList
-          this.form[name+'Name'] = item.name
-        }
-      })
+      if(code) {
+        this[name + 'List'].forEach((item) => {
+          if (item.citycode == code) {
+            this[childrenName + 'List'] = item.itemList
+            this.form[name+'Name'] = item.name
+          }
+        })
+      } else {
+        this[childrenName + 'List'] = []
+        this.form[name+'Name'] = null
+      }
     },
     /* 保存编辑 */
     save() {