Forms

RadioGroup

Groups mutually exclusive options.

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FrameworksAstro · React · Elements

Registry commandlumen add RadioGroup

InteractionEnhanced runtime

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Framework example

Choose Astro, React, or Elements to compare native usage against the shared visual output. Each example assumes the framework-level setup is already complete.

Theme Light Dark

Framework usage

Switch targets to compare the adapter code. The preview stays visually stable because all three packages share the same tokens and ui-* class contract.

---
import { RadioGroup } from '@santi020k/lumen-astro'
---

<RadioGroup>
  <legend>Theme</legend>
  <label><input type="radio" name="ex-theme" value="light" /> Light</label>
  <label><input type="radio" name="ex-theme" value="dark" checked /> Dark</label>
</RadioGroup>

import { RadioGroup } from '@santi020k/lumen-react'

export const Example = () => (
  <>
    <RadioGroup>
      <legend>Theme</legend>
      <label><input type="radio" name="ex-theme" value="light" /> Light</label>
      <label><input type="radio" name="ex-theme" value="dark" defaultChecked /> Dark</label>
    </RadioGroup>
  </>
)

<script type="module">
  import { defineLumenElements } from '@santi020k/lumen-elements/define'

  defineLumenElements()
</script>

<lumen-radio-group>
  <legend>Theme</legend>
  <label><input type="radio" name="ex-theme" value="light" /> Light</label>
  <label><input type="radio" name="ex-theme" value="dark" checked /> Dark</label>
</lumen-radio-group>

Edit RadioGroup in browser

Choose your target

Add this component

Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.

pnpm add @santi020k/lumen-astro

pnpm add @santi020k/lumen-astro

lumen add RadioGroup

lumen add RadioGroup

pnpm add @santi020k/lumen-react

pnpm add @santi020k/lumen-react

lumen add RadioGroup --target react

lumen add RadioGroup --target react

pnpm add @santi020k/lumen-elements

pnpm add @santi020k/lumen-elements

lumen add RadioGroup --target elements

lumen add RadioGroup --target elements

API reference

Lumen-specific props and runtime attributes for the Astro primitive. React props follow the same names; Elements use equivalent kebab-case attributes where custom elements expose them.

Attribute	Values	Default	Description
children	labelled radio inputs	required	Provides the mutually exclusive native controls inside the fieldset.
aria-label, aria-labelledby	string	-	Names the radio group when no visible legend is supplied.
class, className	string	""	Merges custom classes with the generated ui-* root classes.
...native attributes	HTML attributes	-	Forwards standard attributes to the root element unless the component consumes them.

Keyboard interactions

Keyboard behavior provided by the Astro UIPrimitives runtime for this component.

Key	Action
ArrowRight, ArrowDown	Move roving focus to the next item, wrapping at the end.
ArrowLeft, ArrowUp	Move roving focus to the previous item, wrapping at the start.
Home, End	Move roving focus to the first or last item.