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153 lines
6.9 KiB
Markdown
153 lines
6.9 KiB
Markdown
---
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title: Radio
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lang: en-US
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---
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# Radio
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Single selection among multiple options.
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:::warning
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`label` act as `value` has been **deprecated**, `label` is used only as display text, this action **will be** removed in ^(3.0.0), consider switching to new API.
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:::
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:::tip
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New API `value` has been added in ^(2.6.0), the examples in the document all use the `value`.
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If you are using a version **less than** ^(2.6.0), please refer to:
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:::
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```vue
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<template>
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<el-radio-group v-model="radio1">
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<!-- works when >=2.6.0, recommended ✔️ not work when <2.6.0 ❌ -->
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<el-radio value="Value 1">Option 1</el-radio>
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<!-- works when <2.6.0, deprecated act as value when >=3.0.0 -->
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<el-radio label="Label 2 & Value 2">Option 2</el-radio>
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</el-radio-group>
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</template>
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```
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## Basic usage
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Radio should not have too many options. Otherwise, use the Select component instead.
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:::demo Creating a radio component is easy, you just need to bind a variable to Radio's `v-model`. It equals to the value of `value` of the chosen radio. The type of `value` is `String`, `Number` or `Boolean`.
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radio/basic-usage
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:::
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## Disabled
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`disabled` attribute is used to disable the radio.
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:::demo You just need to add the `disabled` attribute.
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radio/disabled
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:::
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## Radio button group
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Suitable for choosing from some mutually exclusive options.
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:::demo Combine `el-radio-group` with `el-radio` to display a radio group. Bind a variable with `v-model` of `el-radio-group` element and set label value in `el-radio`. It also provides `change` event with the current value as its parameter.
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radio/radio-button-group
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:::
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## Button style
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Radio with button styles.
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:::demo You just need to change `el-radio` element into `el-radio-button` element. We also provide `size` attribute.
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radio/button-style
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:::
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## With borders
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:::demo The `border` attribute adds a border to Radios.
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radio/with-borders
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:::
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## Radio API
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### Radio Attributes
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| Name | Description | Type | Default |
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| --------------------- | ---------------------------------------------------------------------- | ---------------------------------------- | ------- |
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| model-value / v-model | binding value | ^[string] / ^[number] / ^[boolean] | — |
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| value ^(2.6.0) | the value of Radio | ^[string] / ^[number] / ^[boolean] | — |
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| label | the label of Radio. If there's no `value`, `label` will act as `value` | ^[string] / ^[number] / ^[boolean] | — |
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| disabled | whether Radio is disabled | ^[boolean] | false |
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| border | whether to add a border around Radio | ^[boolean] | false |
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| size | size of the Radio | ^[enum]`'large' \| 'default' \| 'small'` | — |
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| name | native `name` attribute | ^[string] | — |
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### Radio Events
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| Name | Description | Type |
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| ------ | ------------------------------------- | --------------------------------------------------------- |
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| change | triggers when the bound value changes | ^[Function]`(value: string \| number \| boolean) => void` |
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### Radio Slots
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| Name | Description |
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| ------- | ------------------------- |
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| default | customize default content |
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## RadioGroup API
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### RadioGroup Attributes
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| Name | Description | Type | Default |
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| --------------------------- | ------------------------------------------------- | ---------------------------------- | ------- |
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| model-value / v-model | binding value | ^[string] / ^[number] / ^[boolean] | — |
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| size | the size of radio buttons or bordered radios | ^[string] | default |
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| disabled | whether the nesting radios are disabled | ^[boolean] | false |
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| text-color | font color when button is active | ^[string] | #ffffff |
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| fill | border and background color when button is active | ^[string] | #409eff |
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| validate-event | whether to trigger form validation | ^[boolean] | true |
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| aria-label ^(a11y) ^(2.7.2) | same as `aria-label` in RadioGroup | ^[string] | — |
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| name | native `name` attribute | ^[string] | — |
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| id | native `id` attribute | ^[string] | — |
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| label ^(a11y) ^(deprecated) | same as `aria-label` in RadioGroup | ^[string] | — |
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### RadioGroup Events
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| Name | Description | Type |
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| ------ | ------------------------------------- | --------------------------------------------------------- |
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| change | triggers when the bound value changes | ^[Function]`(value: string \| number \| boolean) => void` |
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### RadioGroup Slots
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| Name | Description | Subtags |
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| ------- | ------------------------- | ------------------- |
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| default | customize default content | Radio / RadioButton |
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## RadioButton API
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### RadioButton Attributes
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| Name | Description | Type | Default |
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| -------------- | ---------------------------------------------------------------------- | ---------------------------------- | ------- |
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| value ^(2.6.0) | the value of Radio | ^[string] / ^[number] / ^[boolean] | — |
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| label | the label of Radio. If there's no `value`, `label` will act as `value` | ^[string] / ^[number] / ^[boolean] | — |
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| disabled | whether Radio is disabled | ^[boolean] | false |
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| name | native 'name' attribute | ^[string] | — |
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### RadioButton Slots
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| Name | Description |
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| ------- | ------------------------- |
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| default | customize default content |
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