Radio Group
<wa-radio-group>
Radio groups wrap a set of radios so they function as a single form control with one shared value. They handle keyboard navigation, labeling, and validation for the group as a whole.
<wa-radio-group label="Select an option" name="a" value="1"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
Examples
Checked
Use the value attribute on the radio group to set the checked radio.
<wa-radio-group label="Select an option" name="a" value="2"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
To target checked radios with CSS, use the :state(checked) selector.
Hint
Add descriptive hint to a radio group with the hint attribute. For hints that contain HTML, use the hint slot instead.
<wa-radio-group label="Select an option" hint="Choose the most appropriate option." name="a" value="1"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
Radio Buttons
Set the appearance attribute to button on all radios to render a radio button group.
<wa-radio-group label="Horizontal options" hint="Select an option that makes you proud." orientation="horizontal" name="a" value="1" > <wa-radio appearance="button" value="1">Option 1</wa-radio> <wa-radio appearance="button" value="2">Option 2</wa-radio> <wa-radio appearance="button" value="3">Option 3</wa-radio> </wa-radio-group> <br /> <wa-radio-group label="Vertical options" hint="Select an option that makes you proud." orientation="vertical" name="a" value="1" style="max-width: 300px;" > <wa-radio appearance="button" value="1">Option 1</wa-radio> <wa-radio appearance="button" value="2">Option 2</wa-radio> <wa-radio appearance="button" value="3">Option 3</wa-radio> </wa-radio-group>
Disabling
To disable the entire radio group, add the disabled attribute to the radio group.
<wa-radio-group label="Select an option" disabled> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2" disabled>Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
To disable individual options, add the disabled attribute to the respective options.
<wa-radio-group label="Select an option"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2" disabled>Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
Orientation
The default orientation for radio items is vertical. Set the orientation to horizontal to items on the same row.
<wa-radio-group label="Select an option" hint="Choose the most appropriate option." orientation="horizontal" name="a" value="1" > <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
Sizing Options
The size of radios will be determined by the Radio Group's size attribute.
<wa-radio-group label="Extra small options" size="xs" value="1"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group> <br> <wa-radio-group label="Small options" size="s" value="1"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group> <br> <wa-radio-group label="Medium options" size="m" value="2"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group> <br> <wa-radio-group label="Large options" size="l" value="3"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group> <br> <wa-radio-group label="Extra large options" size="xl" value="3"> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group>
If you need to have radios of varying sizes, place the size attribute on individual radio items instead.
<wa-radio-group label="Mixed options" value="medium"> <wa-radio value="1" size="xs">Extra Small</wa-radio> <wa-radio value="2" size="s">Small</wa-radio> <wa-radio value="3" size="m">Medium</wa-radio> <wa-radio value="4" size="l">Large</wa-radio> <wa-radio value="5" size="xl">Extra Large</wa-radio> </wa-radio-group>
Validation
Setting the required attribute to make selecting an option mandatory. If a value has not been selected, it will prevent the form from submitting and display an error message.
<form class="validation"> <wa-radio-group label="Select an option" name="a" required> <wa-radio value="1">Option 1</wa-radio> <wa-radio value="2">Option 2</wa-radio> <wa-radio value="3">Option 3</wa-radio> </wa-radio-group> <br /> <wa-button appearance="filled" type="submit" variant="neutral">Submit</wa-button> </form> <script> const form = document.querySelector('.validation'); // Handle form submit form.addEventListener('submit', event => { event.preventDefault(); alert('All fields are valid!'); }); </script>
Custom Validity
Use the setCustomValidity() method to set a custom validation message. This will prevent the form from submitting and make the browser display the error message you provide. To clear the error, call this function with an empty string.
<form class="custom-validity"> <wa-radio-group label="Select an option" name="a" value="1"> <wa-radio value="1">Not me</wa-radio> <wa-radio value="2">Me neither</wa-radio> <wa-radio value="3">Choose me</wa-radio> </wa-radio-group> <br /> <wa-button appearance="filled" type="submit" variant="neutral">Submit</wa-button> </form> <script> const form = document.querySelector('.custom-validity'); const radioGroup = form.querySelector('wa-radio-group'); const errorMessage = 'You must choose the last option'; // Set initial validity as soon as the element is defined customElements.whenDefined('wa-radio-group').then(() => { radioGroup.setCustomValidity(errorMessage); }); // Update validity when a selection is made form.addEventListener('change', () => { const isValid = radioGroup.value === '3'; radioGroup.setCustomValidity(isValid ? '' : errorMessage); }); // Handle form submit form.addEventListener('submit', event => { event.preventDefault(); alert('All fields are valid!'); }); </script>
Importing
If you're using the autoloader or a hosted project, components load on demand — no manual import needed. To cherry-pick a component manually, use one of the following snippets.
Import this component directly from the CDN:
import 'https://ka-f.webawesome.com/[email protected]/components/radio-group/radio-group.js';
After installing Web Awesome via npm, import this component:
import '@awesome.me/webawesome/dist/components/radio-group/radio-group.js';
If you're self-hosting Web Awesome, import this component from your server:
import './webawesome/dist/components/radio-group/radio-group.js';
To import this component for React 18 or below, use the following code:
import WaRadioGroup from '@awesome.me/webawesome/dist/react/radio-group/index.js';
Slots
Learn more about using slots.
| Name | Description |
|---|---|
| (default) | The default slot where <wa-radio> elements are placed. |
hint
|
Text that describes how to use the radio group. Alternatively, you can use the hint attribute. |
label
|
The radio group's label. Required for proper accessibility. Alternatively, you can use the label attribute. |
Attributes & Properties
Learn more about attributes and properties.
| Name | Description | Reflects | |
|---|---|---|---|
css |
One or more CSSResultGroup to include in the component's shadow root. Host styles are automatically prepended.
Type
CSSResultGroup | undefinedDefault
[sizeStyles, formControlStyles, styles] |
||
defaultValuevalue |
The default value of the form control. Primarily used for resetting the form control.
Type
string | null |
|
|
disableddisabled |
Disables the radio group and all child radios.
Type
booleanDefault
false |
|
|
form |
By default, form controls are associated with the nearest containing
<form> element. This attribute allows you
to place the form control outside of a form and associate it with the form that has this id. The form must be in
the same document or shadow root for this to work.Type
HTMLFormElement | null |
||
hinthint |
The radio groups's hint. If you need to display HTML, use the
hint slot instead.Type
stringDefault
'' |
||
labellabel |
The radio group's label. Required for proper accessibility. If you need to display HTML, use the
label slot
instead.Type
stringDefault
'' |
||
namename |
The name of the radio group, submitted as a name/value pair with form data.
Type
string | nullDefault
null |
|
|
orientationorientation |
The orientation in which to show radio items.
Type
'horizontal' | 'vertical'Default
'vertical' |
|
|
requiredrequired |
Ensures a child radio is checked before allowing the containing form to submit.
Type
booleanDefault
false |
|
|
sizesize |
The radio group's size. When present, this size will be applied to all
<wa-radio> items inside.Type
'xs' | 's' | 'm' | 'l' | 'xl' | 'small' | 'medium' | 'large' |
|
|
validationTarget |
We use the first available radio as the validationTarget similar to native HTML that shows the validation popup on
the first radio element.
Type
undefined | HTMLElement |
||
validators |
Validators are static because they have
observedAttributes, essentially attributes to "watch"
for changes. Whenever these attributes change, we want to be notified and update the validator.Type
Validator[]Default
[] |
||
value |
The current value of the radio group, submitted as a name/value pair with form data.
|
||
withHintwith-hint |
Only required for SSR. Set to
true if you're slotting in a hint element so the server-rendered markup
includes the hint before the component hydrates on the client.Type
booleanDefault
false |
||
withLabelwith-label |
Only required for SSR. Set to
true if you're slotting in a label element so the server-rendered markup
includes the label before the component hydrates on the client.Type
booleanDefault
false |
Methods
Learn more about methods.
| Name | Description | Arguments |
|---|---|---|
focus() |
Sets focus on the radio group. |
options: FocusOptions
|
formStateRestoreCallback() |
Called when the browser is trying to restore element’s state to state in which case reason is "restore", or when the browser is trying to fulfill autofill on behalf of user in which case reason is "autocomplete". In the case of "restore", state is a string, File, or FormData object previously set as the second argument to setFormValue. |
state: string | File | FormData | null,
reason: 'autocomplete' | 'restore'
|
resetValidity() |
Reset validity is a way of removing manual custom errors and native validation. | |
setCustomValidity() |
Do not use this when creating a "Validator". This is intended for end users of components. We track manually defined custom errors so we don't clear them on accident in our validators. |
message: string
|
Events
Learn more about events.
| Name | Description |
|---|---|
change |
Emitted when the radio group's selected value changes. |
input |
Emitted when the radio group receives user input. |
wa-invalid |
Emitted when the form control has been checked for validity and its constraints aren't satisfied. |
CSS parts
Learn more about CSS parts.
| Name | Description | CSS selector |
|---|---|---|
form-control |
The form control that wraps the label, input, and hint. |
::part(form-control)
|
form-control-input |
The input's wrapper. |
::part(form-control-input)
|
form-control-label |
The label's wrapper. |
::part(form-control-label)
|
hint |
The hint's wrapper. |
::part(hint)
|
radios |
The wrapper than surrounds radio items, styled as a flex container by default. |
::part(radios)
|
Dependencies
This component automatically imports the following elements. Sub-dependencies, if any exist, will also be included in this list.
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