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@louismax/cn-area-cascader

v0.1.1

Published

China province city district cascader for Vue 3 and Element Plus.

Downloads

201

Readme

@louismax/cn-area-cascader

Vue3 + Element Plus 中国省市区级联选择组件。

安装

yarn add @louismax/cn-area-cascader

适用于已有 Vue3 + Element Plus 项目。vueelement-plus 为 peer dependencies,需要由业务项目提供。

使用

<template>
  <CnAreaCascader v-model="areaCode" />
</template>

<script setup lang="ts">
import { ref } from 'vue'
import CnAreaCascader from '@louismax/cn-area-cascader'

const areaCode = ref('')
</script>

Props

| 属性 | 类型 | 默认值 | 说明 | | --- | --- | --- | --- | | modelValue / v-model | string \| string[] \| object \| object[] | - | 组件绑定值,实际结构由 valueModemultiple 决定。 | | data | AreaNode[] | 内置省市区数据 | 自定义省市区树形数据。不传时使用内置数据。 | | props | AreaFieldNames | defaultAreaProps | 自定义字段映射,用于适配业务数据中的字段名。 | | multiple | boolean | false | 是否开启多选。 | | collapseSelected | boolean | true | 多选时是否折叠父级。子级全选时返回父级,避免结果过长。 | | selectableNational | boolean | false | 是否显示全国根节点。开启后内部为四级选择,对外返回不包含全国。 | | nationalLabel | string | '全国' | 全国根节点的展示名称。 | | nationalValue | string | '100000' | 全国根节点的编码值。 | | valueMode | 'leaf-code' \| 'path-code' \| 'leaf-node' \| 'path-node' | 'leaf-code' | 控制返回格式。 | | checkStrictly | boolean | false | 单选时是否允许选择任意层级。多选一般不需要配置。 | | placeholder | string | '请选择省市区' | 输入框占位文案。 | | disabled | boolean | false | 是否禁用组件。 | | clearable | boolean | true | 是否显示清空按钮。 | | filterable | boolean | false | 是否开启搜索。 | | autocomplete | string | 'off' | 原生输入框的自动填充策略。 | | separator | string | ' / ' | 路径展示分隔符。 | | showAllLevels | boolean | true | 是否展示完整路径。开启全国根时会隐藏 tag 中的全国前缀。 | | includePathInfo | boolean | true | 对象返回时是否附加路径信息。 | | showCheckedStrategy | 'child' \| 'parent' | 跟随 collapseSelected | Element Plus 多选展示策略。 | | collapseTags | boolean | true | 多选时是否折叠 tag。 | | collapseTagsTooltip | boolean | true | tag 折叠后是否通过 tooltip 展示完整内容。 | | maxCollapseTags | number \| 'auto' | 'auto' | 多选折叠时最多展示的 tag 数,auto 会根据宽度估算。 |

checkStrictly 用于单选时选择任意层级,默认关闭。多选无需该配置,父级选择与半选状态由 Cascader 自身支持。

valueMode

leaf-code  返回末级编码,默认
path-code  返回路径编码
leaf-node  返回末级对象
path-node  返回路径树

多选父级折叠

<CnAreaCascader v-model="values" multiple />

默认开启 collapseSelected,子级全选时返回父级。

选择任意层级

<CnAreaCascader v-model="value" check-strictly />

默认单选只能选择末级区县,开启后可选择省、市、区任意一级。多选场景无需该配置。

显示全国根

<CnAreaCascader v-model="values" multiple selectable-national />

内部显示 全国 / 省 / 市 / 区,返回值不包含全国节点。

编辑回填

业务接口只保存编码时,可以直接回填:

value.value = '110101'

即使 valueMode="leaf-node",组件也会自动转换并回显。

License

MIT