Files
2025-10-01 10:01:52 +08:00

92 lines
3.7 KiB
Markdown
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
title: TreeSelect 树形选择
description: 适用于选择树形的数据结构。
spline: form
isComponent: true
---
<div style="background: #ecf2fe; display: flex; align-items: center; line-height: 20px; padding: 14px 24px; border-radius: 3px; color: #555a65">
<svg fill="none" viewBox="0 0 16 16" width="16px" height="16px" style="margin-right: 5px">
<path fill="#0052d9" d="M8 15A7 7 0 108 1a7 7 0 000 14zM7.4 4h1.2v1.2H7.4V4zm.1 2.5h1V12h-1V6.5z" fillOpacity="0.9"></path>
</svg>
该组件于 0.32.0 版本上线,请留意版本。
</div>
## 引入
全局引入,在 miniprogram 根目录下的`app.json`中配置,局部引入,在需要引入的页面或组件的`index.json`中配置。
```json
"usingComponents": {
"t-tree-select": "tdesign-miniprogram/tree-select/tree-select"
}
```
## 代码演示
<a href="https://developers.weixin.qq.com/s/Bl64Ximr7LSl" title="在开发者工具中预览效果" target="_blank" rel="noopener noreferrer"> 在开发者工具中预览效果 </a>
<blockquote style="background-color: #d9e1ff; font-size: 15px; line-height: 26px;margin: 16px 0 0;padding: 16px; border-radius: 6px; color: #0052d9" >
<p>Tips: 请确保开发者工具为打开状态。导入开发者工具后依次执行npm i > 构建npm包 > 勾选 "将JS编译成ES5"</p>
</blockquote>
### 组件类型
#### 基础树形选择
{{ base }}
#### 多选树形选择
{{ multiple }}
### 组件状态
#### 三级树形选择
{{ normal }}
## API
### TreeSelect Props
名称 | 类型 | 默认值 | 描述 | 必传
-- | -- | -- | -- | --
style | Object | - | 样式 | N
custom-style | Object | - | 样式,一般用于开启虚拟化组件节点场景 | N
height | String / Number | 336 | 高度,默认单位为 px | N
keys | Object | - | 用来定义 value / label 在 `options` 中对应的字段别名。TS 类型:`KeysType`。[通用类型定义](https://github.com/Tencent/tdesign-miniprogram/blob/develop/src/common/common.ts) | N
multiple | Boolean | false | 是否允许多选 | N
options | Array | [] | 选项。TS 类型:`Array<DataOption>` | N
value | String / Number / Array | - | 选中值。TS 类型:`TreeSelectValue` `type TreeSelectValue = string \| number \| Array<TreeSelectValue>`。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/tree-select/type.ts) | N
default-value | String / Number / Array | undefined | 选中值。非受控属性。TS 类型:`TreeSelectValue` `type TreeSelectValue = string \| number \| Array<TreeSelectValue>`。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/tree-select/type.ts) | N
### TreeSelect Events
名称 | 参数 | 描述
-- | -- | --
change | `(value: TreeSelectValue, level: TreeLevel) ` | 点击任何节点均会触发level 代表当前点击的层级0 代表最左侧,依次递进。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/tree-select/type.ts)。<br/>`type TreeLevel = 0 \| 1 \| 2`<br/>
### TreeSelect External Classes
类名 | 描述
-- | --
t-class | 根节点样式类
t-class-left-column | 左侧第一列样式类
t-class-left-item | 左侧第一列子项样式类
t-class-middle-item | 中间列子项样式类
t-class-right-column | 右侧第一列样式类
t-class-right-item | 右侧第一列子项样式类
t-class-right-item-label | 右侧第一列子项标签样式类
### CSS Variables
组件提供了下列 CSS 变量,可用于自定义样式。
名称 | 默认值 | 描述
-- | -- | --
--td-tree-bg-color | @bg-color-container | -
--td-tree-colum-width | 206rpx | -
--td-tree-item-active-color | @brand-color | -
--td-tree-item-font-size | 32rpx | -
--td-tree-item-height | 112rpx | -
--td-tree-root-bg-color | @bg-color-secondarycontainer | -