72 lines
2.6 KiB
Markdown
72 lines
2.6 KiB
Markdown
---
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title: TreeSelect 树形选择
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description: 适用于选择树形的数据结构。
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spline: form
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isComponent: true
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---
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<div style="background: #ecf2fe; display: flex; align-items: center; line-height: 20px; padding: 14px 24px; border-radius: 3px; color: #555a65">
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<svg fill="none" viewBox="0 0 16 16" width="16px" height="16px" style="margin-right: 5px">
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<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>
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</svg>
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该组件于 0.32.0 版本上线，请留意版本。
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</div>
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## 引入
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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。
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```json
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"usingComponents": {
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"t-tree-select": "tdesign-miniprogram/tree-select/tree-select"
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}
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```
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## 代码演示
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### 组件类型
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#### 基础树形选择
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{{ base }}
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#### 多选树形选择
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{{ multiple }}
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### 组件状态
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#### 三级树形选择
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{{ normal }}
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## API
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### TreeSelect Props
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名称 | 类型 | 默认值 | 说明 | 必传
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-- | -- | -- | -- | --
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height | String / Number | 336 | 高度，默认单位为 px | N
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keys | Object | - | 用来定义 value / label 在 `options` 中对应的字段别名。TS 类型：`KeysType` | N
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multiple | Boolean | false | 是否多选 | N
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options | Array | [] | 选项。TS 类型：`Array<DataOption>` | N
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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
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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
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### TreeSelect Events
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名称 | 参数 | 描述
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-- | -- | --
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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/>
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### CSS 变量
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组件提供了下列 CSS 变量，可用于自定义样式。
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名称 | 默认值 | 描述
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-- | -- | --
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--td-tree-bg-color | @bg-color-container | -
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--td-tree-colum-width | 206rpx | -
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--td-tree-item-active-color | @brand-color | -
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--td-tree-item-font-size | 32rpx | -
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--td-tree-item-height | 112rpx | -
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--td-tree-root-bg-color | @bg-color-secondarycontainer | -
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