---
category: Components
type: Data Entry
title: Radio
---
Radio.
## When To Use
- Used to select a single state from multiple options.
- The difference from Select is that Radio is visible to the user and can facilitate the comparison of choice, which means there shouldn't be too many of them.
## API
### Radio
| Property | Description | Type | Default |
| -------- | ----------- | ---- | ------- |
| autoFocus | get focus when component mounted | boolean | false |
| checked | Specifies whether the radio is selected. | boolean | - |
| defaultChecked | Specifies the initial state: whether or not the radio is selected. | boolean | false |
| disabled | Disable radio | boolean | false |
| value | According to value for comparison, to determine whether the selected | any | - |
### RadioGroup
Radio group can wrap a group of `Radio` 。
| Property | Description | Type | Default |
| -------- | ----------- | ---- | ------- |
| defaultValue | Default selected value | any | - |
| disabled | Disable all radio buttons | boolean | false |
| name | The `name` property of all `input[type="radio"]` children | string | - |
| options | set children optional | string\[] \| Array< { label: string value: string disabled?: boolean }> | - |
| size | size for radio button style | `large` \| `default` \| `small` | `default` |
| value | Used for setting the currently selected value. | any | - |
| onChange | The callback function that is triggered when the state changes. | Function(e:Event) | - |
| buttonStyle | style type of radio button | `outline` \| `solid` | `outline` |
## Methods
### Radio
| Name | Description |
| ---- | ----------- |
| blur() | remove focus |
| focus() | get focus |
