---
title: RadioGroup
description: RadioGroup
element: vaadin-radio-group
---

## Description

`<vaadin-radio-group>` is a web component that allows the user to choose one item from a group of choices.

```html
<vaadin-radio-group label="Travel class">
  <vaadin-radio-button value="economy" label="Economy"></vaadin-radio-button>
  <vaadin-radio-button value="business" label="Business"></vaadin-radio-button>
  <vaadin-radio-button value="firstClass" label="First Class"></vaadin-radio-button>
</vaadin-radio-group>
```

### Styling

The following shadow DOM parts are available for styling:

Part name            | Description
---------------------|----------------
`label`              | The slotted label element wrapper
`group-field`        | The radio button elements wrapper
`helper-text`        | The slotted helper text element wrapper
`error-message`      | The slotted error message element wrapper
`required-indicator` | The `required` state indicator element

The following state attributes are available for styling:

Attribute           | Description
--------------------|---------------------------------
`disabled`          | Set when the element is disabled
`readonly`          | Set when the element is readonly
`invalid`           | Set when the element is invalid
`focused`           | Set when the element is focused
`has-label`         | Set when the element has a label
`has-value`         | Set when the element has a value
`has-helper`        | Set when the element has helper text
`has-error-message` | Set when the element has an error message
`has-tooltip`       | Set when the element has a slotted tooltip

The following custom CSS properties are available for styling:

Custom CSS property                                |
:--------------------------------------------------|
| `--vaadin-input-field-error-color`               |
| `--vaadin-input-field-error-font-size`           |
| `--vaadin-input-field-error-font-weight`         |
| `--vaadin-input-field-error-line-height`         |
| `--vaadin-input-field-label-color`               |
| `--vaadin-input-field-label-font-size`           |
| `--vaadin-input-field-label-font-weight`         |
| `--vaadin-input-field-label-line-height`         |
| `--vaadin-input-field-helper-color`              |
| `--vaadin-input-field-helper-font-size`          |
| `--vaadin-input-field-helper-font-weight`        |
| `--vaadin-input-field-helper-line-height`        |
| `--vaadin-input-field-required-indicator-color`  |
| `--vaadin-input-field-required-indicator`        |

See [Styling Components](https://vaadin.com/docs/latest/styling/styling-components) documentation.

## Properties

### accessibleName

**Type:** `string | null | undefined`

String used to label the component to screen reader users.

### accessibleNameRef

**Type:** `string | null | undefined`

Id of the element used as label of the component to screen reader users.

### disabled

**Type:** `boolean`

If true, the user cannot interact with this element.

### errorMessage

**Type:** `string | null | undefined`

Error to show when the field is invalid.

### helperText

**Type:** `string | null | undefined`

String used for the helper text.

### invalid

**Type:** `boolean`

Set to true when the field is invalid.

### label

**Type:** `string | null | undefined`

The label text for the input node.
When no light dom defined via [slot=label], this value will be used.

### manualValidation

**Type:** `boolean`

Set to true to enable manual validation mode. This mode disables automatic
constraint validation, allowing you to control the validation process yourself.
You can still trigger constraint validation manually with the `validate()` method
or use `checkValidity()` to assess the component's validity without affecting
the invalid state. In manual validation mode, you can also manipulate
the `invalid` property directly through your application logic without conflicts
with the component's internal validation.

### name

**Type:** `string | null | undefined`

The name of the control, which is submitted with the form data.

### readonly

**Type:** `boolean`

When present, the user cannot modify the value of the radio group.
The property works similarly to the `disabled` property.
While the `disabled` property disables all radio buttons inside the group,
the `readonly` property disables only unchecked ones.

### required

**Type:** `boolean`

Specifies that the user must fill in a value.

### value

**Type:** `string | null | undefined`

The value of the radio group.

## Methods

### checkValidity

**Type:** `() => boolean`

Returns true if the field value satisfies all constraints (if any).

### validate

**Type:** `() => boolean`

Validates the field and sets the `invalid` property based on the result.

The method fires a `validated` event with the result of the validation.

## Events

### invalid-changed

**Type:** [RadioGroupInvalidChangedEvent](#radiogroupinvalidchangedevent)

Fired when the `invalid` property changes.

### validated

**Type:** [RadioGroupValidatedEvent](#radiogroupvalidatedevent)

Fired whenever the field is validated.

### value-changed

**Type:** [RadioGroupValueChangedEvent](#radiogroupvaluechangedevent)

Fired when the `value` property changes.

## Types

### RadioGroupInvalidChangedEvent

```ts
/**
 * Fired when the `invalid` property changes.
 */
export type RadioGroupInvalidChangedEvent = CustomEvent<{ value: boolean }>;
```

### RadioGroupValidatedEvent

```ts
/**
 * Fired whenever the field is validated.
 */
export type RadioGroupValidatedEvent = CustomEvent<{ valid: boolean }>;
```

### RadioGroupValueChangedEvent

```ts
/**
 * Fired when the `value` property changes.
 */
export type RadioGroupValueChangedEvent = CustomEvent<{ value: string }>;
```